DUCTLESS COMFORT
Mini-split systems
Single-zone, DIY and complete ductless equipment by capacity and model.
Shop 264 products →
National Mini Splits · MRCOOL equipment department
Flanges
Find Flanges 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.
Shop this department4 products to compare
Open buying guides →
Complete equipment directory
Shop every MRCOOL department
Choose a department, use the focused links, or start with the real catalog example shown on each card.
ROOM-BY-ROOM
Multi-zone systems
Coordinated condensers and indoor-unit combinations for multiple spaces.
Shop 235 products →
DUCTED SYSTEMS
Central HVAC
Heat pumps, air handlers, coils, furnaces and matched ducted equipment.
Shop 322 products →
ALL-IN-ONE OUTDOOR
Packaged HVAC
Packaged heat pumps and air conditioners by tonnage, voltage and model.
Shop 35 products →
PROJECT ESSENTIALS
Parts & accessories
Line sets, heat kits, controls, mounting and installation components.
Shop 114 products →Real products · current catalog
View the full department ↓Popular starting points in Flanges
$60.00
$55.00
$45.00
$50.00
Not sure where to begin?Open the Flanges 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
Open all 4 products →Compare real products in Flanges
4-5 Ton 24.5" Cased Coil Flange for Furnace Install, MCMP4860D-FMCMP4860D-F
4-5 Ton 21" Cased Coil Flange for Furnace Install, MCMP4860C-FMCMP4860C-F
1.5-2 Ton 14.5" Cased Coil Flange for Furnace Install, MCMP1824A-FMCMP1824A-F
1.5-3 Ton 17.5" Cased Coil Flange for Furnace Install, MCMP1836B-FMCMP1836B-FEducational content is general information, not engineering, legal, tax or installation advice. Manufacturer documentation, certified ratings and applicable requirements control.
MRCOOL
4-5 Ton 24.5" Cased Coil Flange for Furnace Install, MCMP4860D-F
Model: MCMP4860D-F$60.00
Available to order
View product details
MRCOOL
4-5 Ton 21" Cased Coil Flange for Furnace Install, MCMP4860C-F
Model: MCMP4860C-F$55.00
Available to order
View product details
MRCOOL
1.5-2 Ton 14.5" Cased Coil Flange for Furnace Install, MCMP1824A-F
Model: MCMP1824A-F$45.00
Available to order
View product details
MRCOOL
1.5-3 Ton 17.5" Cased Coil Flange for Furnace Install, MCMP1836B-F
Model: MCMP1836B-F$50.00
Available to order
View product details
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 accessReview the project conditions that should be settled before equipment arrives.
Open installation planning → 03 · RefrigerantKeep generations and refrigerants matchedDo not assume indoor, outdoor or accessory components are interchangeable.
Review refrigerant changes → 04 · DocumentationSave model-specific recordsKeep manuals, specifications, invoices, serials and applicable warranty terms together.
Use the document checklist → 05 · Video workshopWatch official MRCOOL demonstrationsUse product videos to supplement—not replace—the current installation manual.
Watch the video workshop → 06 · State planningVerify state and local requirementsStart with climate context and official regulatory gateways for all 50 states.
Choose a state guide →
How to shop Flanges
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.
Flanges 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.