National Mini Splits · MRCOOL equipment department

Installation & Accessories

Find Installation & Accessories by exact model, dimensions and intended equipment family. Accessories that appear similar can have different voltage, capacity, cabinet, connection or generation requirements, so verify the primary equipment model before ordering.

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DUCTLESS COMFORT

Mini-split systems

Single-zone, DIY and complete ductless equipment by capacity and model.

Shop 264 products →

ROOM-BY-ROOM

Multi-zone systems

Coordinated condensers and indoor-unit combinations for multiple spaces.

Shop 235 products →

MRCOOL DIY 5th Gen 27,000 BTU Multi-Zone Mini Split Condenser 230V, DIY-MULTI4-27HP230D-O — MRCOOL model DIY-MULTI4-27HP230D-O, product image 1

DUCTED SYSTEMS

Central HVAC

Heat pumps, air handlers, coils, furnaces and matched ducted equipment.

Shop 322 products →

MRCOOL VersaPro 3.5 Ton Horizontal Package Heat Pump, MPH421HO13C — MRCOOL model MPH421HO13C, product image 1

ALL-IN-ONE OUTDOOR

Packaged HVAC

Packaged heat pumps and air conditioners by tonnage, voltage and model.

Shop 35 products →

MRCOOL Universal Series 8kW Heat Strip with Circuit Breaker, UHK08 — MRCOOL model UHK08, product image 1

PROJECT ESSENTIALS

Parts & accessories

Line sets, heat kits, controls, mounting and installation components.

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Real products · current catalog

Popular starting points in Installation & Accessories

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MRCOOL MRCOOL Universal Series 8kW Heat Strip with Circuit Breaker, UHK08 UHK08

$235.00

MRCOOL Universal Series 5kW Heat Strip with Circuit Breaker, UHK05 — MRCOOL model UHK05, product image 1

MRCOOL MRCOOL Universal Series 5kW Heat Strip with Circuit Breaker, UHK05 UHK05

$181.00

MRCOOL Universal Series 20kW Heat Strip with Circuit Breaker, UHK20 — MRCOOL model UHK20, product image 1

MRCOOL MRCOOL Universal Series 20kW Heat Strip with Circuit Breaker, UHK20 UHK20

$383.00

MRCOOL Universal Series 15kW Heat Strip with Circuit Breaker, UHK15 — MRCOOL model UHK15, product image 1

MRCOOL MRCOOL Universal Series 15kW Heat Strip with Circuit Breaker, UHK15 UHK15

$326.00

MRCOOL Universal Series 10kW Heat Strip with Circuit Breaker, UHK10 — MRCOOL model UHK10, product image 1

MRCOOL MRCOOL Universal Series 10kW Heat Strip with Circuit Breaker, UHK10 UHK10

$252.00

MRCOOL Smart Wi-Fi Mini-Stat (Compatible with MRCOOL Mini-Splits), MST05 — MRCOOL model MST05, product image 1

MRCOOL MRCOOL Smart Wi-Fi Mini-Stat (Compatible with MRCOOL Mini-Splits), MST05 MST05

$114.00

Not sure where to begin?Open the Installation & Accessories buying checklist

Confirm whether the listing is a complete system or an individual component. Match the full model numbers, capacity, voltage, refrigerant, generation and included equipment against current MRCOOL documentation.

Plan electrical work, line sets, drainage, mounting and freight access before ordering. For multi-component systems, verify the exact approved combination—not only the family name.

Read planning guides →Ask an equipment question →

National Mini Splits knowledge network

Products, documents and practical HVAC research—connected.

Use these original research paths to frame the purchase, then verify the exact model in current MRCOOL documentation and applicable requirements for the installation address.

Choose and size a system

Models and compatibility

Installation and delivery

Manuals and ownership

Efficiency and operating cost

Regulations and refrigerants

Ordering and customer care

Projects and industries

Live catalog connections

Compare real products in Installation & Accessories

Open all 114 products →

MRCOOL Universal Series 8kW Heat Strip with Circuit Breaker, UHK08UHK08

MRCOOL Universal Series 5kW Heat Strip with Circuit Breaker, UHK05UHK05

MRCOOL Universal Series 20kW Heat Strip with Circuit Breaker, UHK20UHK20

MRCOOL Universal Series 15kW Heat Strip with Circuit Breaker, UHK15UHK15

MRCOOL Universal Series 10kW Heat Strip with Circuit Breaker, UHK10UHK10

MRCOOL Smart Wi-Fi Mini-Stat (Compatible with MRCOOL Mini-Splits), MST05MST05

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

MRCOOL

MRCOOL Universal Series 8kW Heat Strip with Circuit Breaker, UHK08

Model: UHK08

$235.00

Available to order View product details

MRCOOL

MRCOOL Universal Series 5kW Heat Strip with Circuit Breaker, UHK05

Model: UHK05

$181.00

Available to order View product details

MRCOOL

MRCOOL Universal Series 20kW Heat Strip with Circuit Breaker, UHK20

Model: UHK20

$383.00

Available to order View product details

MRCOOL

MRCOOL Universal Series 15kW Heat Strip with Circuit Breaker, UHK15

Model: UHK15

$326.00

Available to order View product details

MRCOOL

MRCOOL Universal Series 10kW Heat Strip with Circuit Breaker, UHK10

Model: UHK10

$252.00

Available to order View product details

MRCOOL

MRCOOL Smart Wi-Fi Mini-Stat (Compatible with MRCOOL Mini-Splits), MST05

Model: MST05

$114.00

Available to order View product details

Current offer

MRCOOL

MRCOOL Smart Thermostat (Compatible with Ducted Systems Only), MST07

Model: MST07

$117.00Compare at~~$139.00~~

You save $22.0015% off

Available to order View product details

MRCOOL

MRCOOL DIYCOUPLER-38 + DIYCOUPLER-58 (Two Sets) w/75 ft of Communication Wire, DIYCOUPLER-3858K75

Model: DIYCOUPLER-3858K75

$196.00

Available to order View product details

MRCOOL

MRCOOL DIYCOUPLER-14 + DIYCOUPLER-12 + 75ft MC-5 Cable, DIYCOUPLER-1412K75C

Model: DIYCOUPLER-1412K75C

$427.00

Available to order View product details

MRCOOLDIY75-3858C

MRCOOL

MRCOOL DIY 75ft (50 ft + 25 ft) 3/8 x 5/8 Lineset for DIY 24K & 36K Indoor, 4th Generation, DIY75-3858C

Model: DIY75-3858C

$1,214.00

Available to order View product details

MRCOOL

MRCOOL Bluetooth Mini-Stat Thermostat for Ductless Mini Split in White, MTSK02

Model: MTSK02

$74.00

Available to order View product details

MRCOOLNV50-3834-O Current offer

MRCOOL

MRCOOL 50 ft. Pre-Charged 3/8" x 3/4" No-Vac Quick Connect Line Set for Gen 2 Central Ducted and VersaPro Series, NV50-3834-O

Model: NV50-3834-O

$939.51Compare at~~$1,011.83~~

You save $72.327% off

Available to order View product details

MRCOOL

MRCOOL 50 ft. Pre-Charged 3/8" x 3/4" No-Vac Quick Connect Line Set for Central Ducted and Universal Series, NV50-3834

Model: NV50-3834

$698.00

Available to order View product details

MRCOOLNV35-3834-O Current offer

MRCOOL

MRCOOL 35 FT Pre-Charged 3/8" x 3/4" No-Vac Quick Connect Line Set for Gen 2 Central Ducted and VersaPro Series, NV35-3834-O

Model: NV35-3834-O

$664.70Compare at~~$712.22~~

You save $47.526% off

Available to order View product details

MRCOOL

MRCOOL DIY 50ft 3/8 x 5/8 Pre-Charged Lineset for DIY 24K & 36K Indoor, 4th Generation, DIY50-3858C

Model: DIY50-3858C

$565.00

Available to order View product details

MRCOOL

MRCOOL DIY 50ft 1/4 x 1/2 Pre-Charged Lineset for DIY 9K, 12K & 18K Indoor, 4th Generation, DIY50-1412C

Model: DIY50-1412C

$513.00

Available to order View product details

MRCOOL

MRCOOL DIY 35ft 3/8 x 5/8 Pre-Charged Lineset for DIY 24K, 36K Indoor, 4th Generation, DIY35-3858C

Model: DIY35-3858C

$483.00

Available to order View product details

MRCOOL

MRCOOL DIY 35ft 1/4 x 1/2 Pre-Charged Lineset for DIY 9K, 12K & 18K Indoor, 4th Generation, DIY35-1412C

Model: DIY35-1412C

$438.00

Available to order View product details

MRCOOL

MRCOOL CoolBlade 24' Industrial HVLS Fan, MCFAN24XBGR

Model: MCFAN24XBGR

$4,198.00

Available to order View product details

MRCOOL

MRCOOL CoolBlade 16' Industrial HVLS Fan, MCFAN16PBGR

Model: MCFAN16PBGR

$2,948.00

Available to order View product details

MRCOOL

MRCOOL Condenser Wall Mounting Kit for 9k to 18k BTU Single Zone Ductless Mini Split Systems, MB176

Model: MB176

$77.00

Available to order View product details

MRCOOL

MRCOOL Condenser Wall Mounting Kit for 18k to 36k BTU Ductless Split System, MB440A

Model: MB440A

$121.00

Available to order View product details

Current offer

MRCOOL

MRCOOL Condenser Risers - Set of 2, H600-B

Model: H600-B

$95.00Compare at~~$105.00~~

You save $10.009% off

Available to order View product details

MRCOOL

MRCOOL 8kW Heat Kit for the Central Ducted Air Handler, CENTRALHK08

Model: CENTRALHK08

$164.00

Available to order View product details

MRCOOL

MRCOOL 8kW Heat Kit for Hyper Heat Gen 2 & VersaPro Gen 2 Systems, MVPHK08

Model: MVPHK08

$161.00

Available to order View product details

MRCOOL

MRCOOL 8 KW Universal Air Handler Heat Strip with Circuit Breaker, MHK08U

Model: MHK08U

$162.00

Available to order View product details

MRCOOL

MRCOOL 7 KW Heat Strip for VersaPro Packaged Units, MHK07PB

Model: MHK07PB

$208.00

Available to order View product details

MRCOOLMCAEHWD7X1AA

MRCOOL

MRCOOL 7.5kW Heat Kit for Signature Series R-454B Stud Mount Air Handlers, MCAEHWD7X1AA

Model: MCAEHWD7X1AA

$177.40

Available to order View product details

MRCOOL

MRCOOL 7.5 KW Signature Series Modular Blower Heat Strip with Circuit Breaker, MHK07B

Model: MHK07B

$190.00

Available to order View product details

MRCOOL

MRCOOL 7.5kW Heat Kit for Signature Series R-454B Multiposition Air Handlers, MCAEHFD7X1AA

Model: MCAEHFD7X1AA

$178.50

Available to order View product details

MRCOOL

MRCOOL 7.5 KW Heat Strip for Packaged Units, MHK07P

Model: MHK07P

$179.00

Available to order View product details

MRCOOLDIY25-3858C-O Current offer

MRCOOL

MRCOOL 5th Gen 25ft 3/8 x 5/8 Pre-Charged Lineset w/ DIY Pro Cable for DIY 24K & 36K Indoor, DIY25-3858C-O

Model: DIY25-3858C-O

$613.00Compare at~~$729.00~~

You save $116.0015% off

Available to order View product details

MRCOOLDIY50-3858C-O Current offer

MRCOOL

MRCOOL 5th Gen 50ft 3/8 x 5/8 Pre-Charged Lineset w/ DIY Pro Cable for DIY 24K & 36K Indoor, DIY50-3858C-O

Model: DIY50-3858C-O

$662.00Compare at~~$788.00~~

You save $126.0015% off

Available to order View product details

MRCOOLDIY50-1438C-O Current offer

MRCOOL

MRCOOL 5th Gen 50ft 1/4 x 3/8 Pre-Charged Lineset w/ DIY Pro Cable for DIY 6K, 9K, & 12K Indoor, DIY50-1438C-O

Model: DIY50-1438C-O

$587.00Compare at~~$699.00~~

You save $112.0016% off

Available to order View product details

MRCOOLDIY50-1412C-O Current offer

MRCOOL

MRCOOL 5th Gen 50ft 1/4 x 1/2 Pre-Charged Lineset w/ DIY Pro Cable for DIY 9K, 12K & 18K Indoor, DIY50-1412C-O

Model: DIY50-1412C-O

$599.00Compare at~~$713.00~~

You save $114.0015% off

Available to order View product details

MRCOOLDIY35-3858C-O Current offer

MRCOOL

MRCOOL 5th Gen 35ft 3/8 x 5/8 Pre-Charged Lineset w/ DIY Pro Cable for DIY 24K & 36K Indoor, DIY35-3858C-O

Model: DIY35-3858C-O

$565.00Compare at~~$672.00~~

You save $107.0015% off

Available to order View product details

MRCOOLDIY35-1438C-O Current offer

MRCOOL

MRCOOL 5th Gen 35ft 1/4 x 3/8 Pre-Charged Lineset w/ DIY Pro Cable for DIY 6K, 9K, & 12K Indoor, DIY35-1438C-O

Model: DIY35-1438C-O

$502.00Compare at~~$597.00~~

You save $95.0015% off

Available to order View product details

MRCOOLDIY35-1412C-O Current offer

MRCOOL

MRCOOL 5th Gen 35ft 1/4 x 1/2 Pre-Charged Lineset w/ DIY Pro Cable for DIY 9K, 12K & 18K Indoor, DIY35-1412C-O

Model: DIY35-1412C-O

$510.00Compare at~~$607.00~~

You save $97.0015% off

Available to order View product details

MRCOOLDIY25-3858-O Current offer

MRCOOL

MRCOOL 5th Gen 25ft 3/8 x 5/8 Pre-Charged Lineset for DIY 24K & 36K Indoor, DIY25-3858-O

Model: DIY25-3858-O

$457.00Compare at~~$544.00~~

You save $87.0015% off

Available to order View product details

MRCOOLDIY25-1438-O Current offer

MRCOOL

MRCOOL 5th Gen 25ft 1/4 x 3/8 Pre-Charged Lineset for DIY 6K, 9K, & 12K Indoor, DIY25-1438-O

Model: DIY25-1438-O

$264.00Compare at~~$314.00~~

You save $50.0015% off

Available to order View product details

MRCOOLDIY25-1412C-O Current offer

MRCOOL

MRCOOL 5th Gen 25ft 1/4 x 1/2 Pre-Charged Lineset w/ DIY Pro Cable for DIY 9K, 12K & 18K Indoor, DIY25-1412C-O

Model: DIY25-1412C-O

$436.00Compare at~~$519.00~~

You save $83.0015% off

Available to order View product details

MRCOOLDIY25-1412-O Current offer

MRCOOL

MRCOOL 5th Gen 25ft 1/4 x 1/2 Pre-Charged Lineset for DIY 9K, 12K & 18K Indoor, DIY25-1412-O

Model: DIY25-1412-O

$272.00Compare at~~$323.00~~

You save $51.0015% off

Available to order View product details

MRCOOLDIY16-3858-O Current offer

MRCOOL

MRCOOL 5th Gen 16ft 3/8 x 5/8 Pre-Charged Lineset for DIY 24K & 36K Indoor, DIY16-3858-O

Model: DIY16-3858-O

$271.00Compare at~~$322.00~~

You save $51.0015% off

Available to order View product details

MRCOOLDIY16-1438-O Current offer

MRCOOL

MRCOOL 5th Gen 16ft 1/4 x 3/8 Pre-Charged Lineset for DIY 6K, 9K, & 12K Indoor, DIY16-1438-O

Model: DIY16-1438-O

$227.00Compare at~~$270.00~~

You save $43.0015% off

Available to order View product details

MRCOOLDIY16-1412-O Current offer

MRCOOL

MRCOOL 5th Gen 16ft 1/4 x 1/2 Pre-Charged Lineset for DIY 9K, 12K & 18K Indoor, DIY16-1412-O

Model: DIY16-1412-O

$239.00Compare at~~$284.00~~

You save $45.0015% off

Available to order View product details

MRCOOLPHK05H

MRCOOL

MRCOOL 5kw ProDirect Heat Kit, PHK05H

Model: PHK05H

$178.00

Available to order View product details

MRCOOL

MRCOOL 5kW Heat Kit for the Central Ducted Air Handler (Compatible with MRCOOL Hyper Heat & VersaPro Series), CENTRALHK05

Model: CENTRALHK05

$153.00

Available to order View product details

MRCOOL

MRCOOL 5kW Heat Kit with Circuit Breaker for TruInverter series, MCAEHFD5X1BA

Model: MCAEHFD5X1BA

$117.81

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 Installation & Accessories

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

Installation & Accessories 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.