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National Mini Splits · MRCOOL equipment department

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1.5-2 Ton 14.5" Cased Coil Flange for Furnace Install, MCMP1824A-F — MRCOOL model MCMP1824A-F, product image 11.5-2 Ton 14.5" Cased Coil Flange for Furnace Install, MCMP1824A-FMCMP1824A-F1.5-3 Ton 17.5" Cased Coil Flange for Furnace Install, MCMP1836B-F — MRCOOL model MCMP1836B-F, product image 11.5-3 Ton 17.5" Cased Coil Flange for Furnace Install, MCMP1836B-FMCMP1836B-F30" x 60" Plastic Condensate Drain Pan, 6-3060L6-3060L4-5 Ton 21" Cased Coil Flange for Furnace Install, MCMP4860C-F — MRCOOL model MCMP4860C-F, product image 14-5 Ton 21" Cased Coil Flange for Furnace Install, MCMP4860C-FMCMP4860C-F4-5 Ton 24.5" Cased Coil Flange for Furnace Install, MCMP4860D-F — MRCOOL model MCMP4860D-F, product image 14-5 Ton 24.5" Cased Coil Flange for Furnace Install, MCMP4860D-FMCMP4860D-FCoolGuard 164ft Corrugated Drain Hose Extension for Ductless Mini-Split Air Handler, 31CF10231CF102

Educational content is general information, not engineering, legal, tax or installation advice. Manufacturer documentation, certified ratings and applicable requirements control.

Current department2691 products
MRCOOL DIY 5th Gen 4-Zone 42,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (9K+9K+12K+12K), DIYM448HPW20D255 — MRCOOL model DIYM448HPW20D Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 42,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (9K+9K+12K+12K), DIYM448HPW20D255

Model: DIYM448HPW20D255
$8,018.00Compare at$10,022.50
You save $2,004.5020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 42,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (9K+9K+12K+12K), DIYM455HPW21D255 — MRCOOL model DIYM455HPW21D Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 42,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (9K+9K+12K+12K), DIYM455HPW21D255

Model: DIYM455HPW21D255
$8,599.00Compare at$10,748.75
You save $2,149.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump (6K+9K+12K+18K), DIY4-BC-48HP06091218 — MRCOOL model DIY4-BC-48HP06091218, pro Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump (6K+9K+12K+18K), DIY4-BC-48HP06091218

Model: DIY4-BC-48HP06091218
$8,811.00Compare at$11,013.75
You save $2,202.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump (6K+9K+12K+18K), DIY4-BC-55HP06091218 — MRCOOL model DIY4-BC-55HP06091218, pro Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump (6K+9K+12K+18K), DIY4-BC-55HP06091218

Model: DIY4-BC-55HP06091218
$9,392.00Compare at$11,740.00
You save $2,348.0020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump (9K+12K+12K+12K), DIY4-BC-48HP09121212 — MRCOOL model DIY4-BC-48HP09121212, pr Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump (9K+12K+12K+12K), DIY4-BC-48HP09121212

Model: DIY4-BC-48HP09121212
$8,901.00Compare at$11,126.25
You save $2,225.2520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump (9K+12K+12K+12K), DIY4-BC-55HP09121212 — MRCOOL model DIY4-BC-55HP09121212, pr Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump (9K+12K+12K+12K), DIY4-BC-55HP09121212

Model: DIY4-BC-55HP09121212
$9,482.00Compare at$11,852.50
You save $2,370.5020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump (9K+9K+9K+18K), DIY4-BC-48HP09090918 — MRCOOL model DIY4-BC-48HP09090918, prod Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump (9K+9K+9K+18K), DIY4-BC-48HP09090918

Model: DIY4-BC-48HP09090918
$8,898.00Compare at$11,122.50
You save $2,224.5020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump (9K+9K+9K+18K), DIY4-BC-55HP09090918 — MRCOOL model DIY4-BC-55HP09090918, prod Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump (9K+9K+9K+18K), DIY4-BC-55HP09090918

Model: DIY4-BC-55HP09090918
$9,479.00Compare at$11,848.75
You save $2,369.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM448HPC10D00 — MRCOOL mod Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM448HPC10D00

Model: DIYM448HPC10D00
$9,731.00Compare at$12,163.75
You save $2,432.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM455HPC05D00 — MRCOOL mod Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM455HPC05D00

Model: DIYM455HPC05D00
$10,312.00Compare at$12,890.00
You save $2,578.0020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM448HPC18D00 — MRCOOL mo Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM448HPC18D00

Model: DIYM448HPC18D00
$9,809.00Compare at$12,261.25
You save $2,452.2520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM455HPC15D00 — MRCOOL mo Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM455HPC15D00

Model: DIYM455HPC15D00
$10,390.00Compare at$12,987.50
You save $2,597.5020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM448HPC15D00 — MRCOOL mode Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM448HPC15D00

Model: DIYM448HPC15D00
$9,818.00Compare at$12,272.50
You save $2,454.5020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM455HPC11D00 — MRCOOL mode Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM455HPC11D00

Model: DIYM455HPC11D00
$10,399.00Compare at$12,998.75
You save $2,599.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 25ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM448HPC10D216 — MRCOOL mo Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 25ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM448HPC10D216

Model: DIYM448HPC10D216
$9,875.00Compare at$12,343.75
You save $2,468.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 25ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM455HPC05D216 — MRCOOL mo Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 25ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM455HPC05D216

Model: DIYM455HPC05D216
$10,456.00Compare at$13,070.00
You save $2,614.0020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 25ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM448HPC18D122 — MRCOOL m Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 25ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM448HPC18D122

Model: DIYM448HPC18D122
$9,957.00Compare at$12,446.25
You save $2,489.2520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 25ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM455HPC15D122 — MRCOOL m Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 25ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM455HPC15D122

Model: DIYM455HPC15D122
$10,538.00Compare at$13,172.50
You save $2,634.5020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 25ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM448HPC15D216 — MRCOOL mod Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 25ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM448HPC15D216

Model: DIYM448HPC15D216
$9,962.00Compare at$12,452.50
You save $2,490.5020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 25ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM455HPC11D216 — MRCOOL mod Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 25ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM455HPC11D216

Model: DIYM455HPC11D216
$10,543.00Compare at$13,178.75
You save $2,635.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 35ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM448HPC10D392 — MRCOOL mo Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 35ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM448HPC10D392

Model: DIYM448HPC10D392
$10,827.00Compare at$13,533.75
You save $2,706.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 35ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM455HPC05D392 — MRCOOL mo Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 35ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM455HPC05D392

Model: DIYM455HPC05D392
$11,408.00Compare at$14,260.00
You save $2,852.0020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 35ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM448HPC18D205 — MRCOOL m Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 35ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM448HPC18D205

Model: DIYM448HPC18D205
$10,909.00Compare at$13,636.25
You save $2,727.2520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 35ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM455HPC15D205 — MRCOOL m Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 35ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM455HPC15D205

Model: DIYM455HPC15D205
$11,490.00Compare at$14,362.50
You save $2,872.5020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 35ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM448HPC15D392 — MRCOOL mod Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 35ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM448HPC15D392

Model: DIYM448HPC15D392
$10,914.00Compare at$13,642.50
You save $2,728.5020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 35ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM455HPC11D392 — MRCOOL mod Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 35ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM455HPC11D392

Model: DIYM455HPC11D392
$11,495.00Compare at$14,368.75
You save $2,873.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM448HPC10D526 — MRCOOL mo Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM448HPC10D526

Model: DIYM448HPC10D526
$11,171.00Compare at$13,963.75
You save $2,792.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM455HPC05D526 — MRCOOL mo Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM455HPC05D526

Model: DIYM455HPC05D526
$11,752.00Compare at$14,690.00
You save $2,938.0020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM448HPC18D255 — MRCOOL m Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM448HPC18D255

Model: DIYM448HPC18D255
$11,249.00Compare at$14,061.25
You save $2,812.2520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM455HPC15D255 — MRCOOL m Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM455HPC15D255

Model: DIYM455HPC15D255
$11,830.00Compare at$14,787.50
You save $2,957.5020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM448HPC15D526 — MRCOOL mod Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM448HPC15D526

Model: DIYM448HPC15D526
$11,258.00Compare at$14,072.50
You save $2,814.5020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM455HPC11D526 — MRCOOL mod Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ceiling Cassette Ductless Mini Split Air Conditioner & Heat Pump with 50ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM455HPC11D526

Model: DIYM455HPC11D526
$11,839.00Compare at$14,798.75
You save $2,959.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (6K+6K+9K+24K), DIY4-B-48HP06060924 — MRCOOL model DIY4-B-48HP06060924, product image 1 Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (6K+6K+9K+24K), DIY4-B-48HP06060924

Model: DIY4-B-48HP06060924
$5,639.00Compare at$7,048.75
You save $1,409.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (6K+6K+9K+24K), DIY4-B-55HP06060924 — MRCOOL model DIY4-B-55HP06060924, product image 1 Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (6K+6K+9K+24K), DIY4-B-55HP06060924

Model: DIY4-B-55HP06060924
$6,220.00Compare at$7,775.00
You save $1,555.0020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (6K+9K+12K+18K), DIY4-B-48HP06091218 — MRCOOL model DIY4-B-48HP06091218, product image 1 Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (6K+9K+12K+18K), DIY4-B-48HP06091218

Model: DIY4-B-48HP06091218
$5,837.00Compare at$7,296.25
You save $1,459.2520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (6K+9K+12K+18K), DIY4-B-55HP06091218 — MRCOOL model DIY4-B-55HP06091218, product image 1 Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (6K+9K+12K+18K), DIY4-B-55HP06091218

Model: DIY4-B-55HP06091218
$6,418.00Compare at$8,022.50
You save $1,604.5020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (9K+12K+12K+12K), DIY4-B-48HP09121212 — MRCOOL model DIY4-B-48HP09121212, product image 1 Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (9K+12K+12K+12K), DIY4-B-48HP09121212

Model: DIY4-B-48HP09121212
$5,827.00Compare at$7,283.75
You save $1,456.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (9K+12K+12K+12K), DIY4-B-55HP09121212 — MRCOOL model DIY4-B-55HP09121212, product image 1 Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (9K+12K+12K+12K), DIY4-B-55HP09121212

Model: DIY4-B-55HP09121212
$6,408.00Compare at$8,010.00
You save $1,602.0020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (9K+9K+9K+18K), DIY4-B-48HP09090918 — MRCOOL model DIY4-B-48HP09090918, product image 1 Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (9K+9K+9K+18K), DIY4-B-48HP09090918

Model: DIY4-B-48HP09090918
$5,755.00Compare at$7,193.75
You save $1,438.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (9K+9K+9K+18K), DIY4-B-55HP09090918 — MRCOOL model DIY4-B-55HP09090918, product image 1 Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump (9K+9K+9K+18K), DIY4-B-55HP09090918

Model: DIY4-B-55HP09090918
$6,336.00Compare at$7,920.00
You save $1,584.0020% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (6K+6K+9K+24K), DIYM448HPW04D00 — MRCOOL model DIYM448HPW04D00 Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (6K+6K+9K+24K), DIYM448HPW04D00

Model: DIYM448HPW04D00
$6,591.00Compare at$8,238.75
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MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (6K+6K+9K+24K), DIYM455HPW03D00 — MRCOOL model DIYM455HPW03D00 Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (6K+6K+9K+24K), DIYM455HPW03D00

Model: DIYM455HPW03D00
$7,172.00Compare at$8,965.00
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MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM448HPW14D00 — MRCOOL model DIYM448HPW14D0 Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM448HPW14D00

Model: DIYM448HPW14D00
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MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM455HPW11D00 — MRCOOL model DIYM455HPW11D0 Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (6K+9K+12K+18K), DIYM455HPW11D00

Model: DIYM455HPW11D00
$7,338.00Compare at$9,172.50
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MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM448HPW22D00 — MRCOOL model DIYM448HPW22D Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM448HPW22D00

Model: DIYM448HPW22D00
$6,735.00Compare at$8,418.75
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MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM455HPW25D00 — MRCOOL model DIYM455HPW25D Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+12K+12K+12K), DIYM455HPW25D00

Model: DIYM455HPW25D00
$7,316.00Compare at$9,145.00
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MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM448HPW19D00 — MRCOOL model DIYM448HPW19D00 Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM448HPW19D00

Model: DIYM448HPW19D00
$6,675.00Compare at$8,343.75
You save $1,668.7520% off
Available to order View product details
MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM455HPW19D00 — MRCOOL model DIYM455HPW19D00 Current offer
MRCOOL

MRCOOL DIY 5th Gen 4-Zone 45,000 BTU Ductless Mini Split Air Conditioner & Heat Pump with 16ft. Pre-Charged Line Sets (9K+9K+9K+18K), DIYM455HPW19D00

Model: DIYM455HPW19D00
$7,256.00Compare at$9,070.00
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Available to order View product details
National Mini Splits resource center

Plan the complete project—not only the equipment.

Use these original guides as a starting point, then confirm the exact product manual, local requirements and qualified professional work where applicable.

01 · SizingBuild from a load calculation

Understand why climate, insulation, windows, occupancy and room use matter.

Read sizing guidance → 02 · InstallationPlan electrical, drainage and access

Review the project conditions that should be settled before equipment arrives.

Open installation planning → 03 · RefrigerantKeep generations and refrigerants matched

Do not assume indoor, outdoor or accessory components are interchangeable.

Review refrigerant changes → 04 · DocumentationSave model-specific records

Keep manuals, specifications, invoices, serials and applicable warranty terms together.

Use the document checklist → 05 · Video workshopWatch official MRCOOL demonstrations

Use product videos to supplement—not replace—the current installation manual.

Watch the video workshop → 06 · State planningVerify state and local requirements

Start with climate context and official regulatory gateways for all 50 states.

Choose a state guide →
How to shop Products

A precise model match saves more time than a broad category match.

Accessories are model-specific even when their names look universal. Match the accessory model to the exact indoor or outdoor equipment, generation, refrigerant, voltage, connection type and current manufacturer documentation.

Measure the route and installation conditions before selecting line sets, drainage, mounting, controls or heat kits. Confirm which parts are included with the primary equipment so the order is complete without unnecessary duplicates.

Common buying questions

Products FAQs

How do I know whether a listing is a complete system?

Review the product title, included-components section, product images and exact models. A family name or capacity alone does not prove that indoor and outdoor equipment are both included.

Can I match components from different MRCOOL generations?

Do not assume cross-generation compatibility. Confirm the complete combination in current MRCOOL documentation or obtain model-specific evidence before ordering.

Does square footage determine the correct system size?

No. Square footage is only one input. Climate, insulation, windows, ceiling height, orientation, occupancy and internal loads should be considered in a proper load calculation.

Where do I confirm shipping charges and delivery options?

Available shipping methods and charges are shown at checkout for the order and destination. Large equipment may require additional freight-access planning before purchase.