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  • Mini Splits›
    RecommendedRecommended for multi-zoneBUILD A DIY MULTI-ZONE SYSTEMConfigure zones, indoor units, capacities, and line-set lengths.START BUILDING →
    Installation pathDesigned for DIY InstallationHomeowner-oriented systems with factory-precharged connection options.Shop DIY systems →Installation pathProfessional InstallationCompare Olympus and Advantage systems intended for traditional HVAC installation.Compare systems → Planning a complete system?Financing AvailableExplore payment options for a complete multi-zone purchase.View financing →
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    Not sure what size?Plan before you buyUse the BTU calculator as a starting point for system sizing.Open BTU calculator →
  • Central HVAC›
    DIY hybrid configurationPlan a DIY Hybrid SystemCombine a central ducted air handler with supported wall or cassette zones on a DIY multi-zone condenser.Open Hybrid Builder →
    Before you chooseInstallation Varies by ConfigurationSome eligible split systems offer precharged options; packaged, furnace, and traditional configurations follow professional-installation paths.Get selection help → Planning a whole-home purchase?Financing AvailableReview payment options for larger equipment purchases.Explore financing →
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    Sizing & planningManual J Load CalculatorEstimate heating and cooling loads before selecting equipment.Open Manual J →
  • Specialty›
    TravelCool rooftop RV air conditioner at a lakeside campsite Comfort for the roadRV air conditioningTravelCool RV Air ConditioningRooftop cooling and supplemental heat-pump heating for RV applications.Explore TravelCool →
    • TravelCool / RV Air Conditioners
    • Monoblock Heat Pumps
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    • MRBREEZE
    MRCOOL Monoblock heat pump installed through an exterior wall All-in-one HVACMonoblock Heat PumpsHeating and cooling without a separate outdoor unit.Shop Monoblock → MRCOOL compact refrigeration equipment for a walk-in cooler Walk-in coolingCompact RefrigerationSelf-contained refrigeration for walk-in cooler and freezer applications.Explore Refrigeration → MRCOOL industrial HVLS fan installed in a warehouse Large-space airflowIndustrial HVLS FansLarge-diameter fans for warehouses and other expansive spaces.Shop HVLS Fans →
  • Parts & Accessories›
    Replacement partsStart with your model numberShop genuine MRCOOL replacement parts. Confirm equipment details before ordering.Shop replacement parts →
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    • Installation & Accessories ›
      • Line Sets
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      • Tools & Gauges
    Installation & accessoriesInstallation essentialsLine sets, mounting, kits, controls, and installation accessories.Shop accessories →
  • Build & Size›
    RecommendedPrimary configuration toolBuild a DIY Multi-Zone SystemBuild a matched MRCOOL DIY multi-zone system from zones through line-set lengths.Start building →
    • System Builders ›
      • Multi-Zone System Builder
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    • Sizing Tools ›
      • Mini-Split BTU Calculator
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    Sizing toolsFind the right sizeUse the BTU calculator or Manual J tools before choosing equipment.Start sizing → After you planExplore Payment OptionsAfter configuring and sizing your project, review available financing options.View financing →
  • Learn›
    • Start Learning ›
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    Learn the basicsNew to MRCOOL? Start hereGet straightforward guides for choosing, planning, and installing your system.Start learning →
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    • Build Your System›
      • Multi-Zone System Builder
      • Olympus System Builder
      • Mini-Split BTU Calculator
    • Shop by System›
      • Shop All Mini Splits
      • Shop All DIY Mini Splits
      • Single Zone Systems
      • Multi-Zone Systems
      • DIY Pre-Charged Systems
    • Shop by Zones›
      • 2 Zones
      • 3 Zones
      • 4 Zones
      • 5 Zones
      • 6 Zones
    • Popular Series›
      • 5th Gen DIY
      • DIY Hyper Heat
      • Easy Pro
      • Olympus
    RecommendedRecommended for multi-zoneBUILD A DIY MULTI-ZONE SYSTEMChoose your zones, indoor units, capacities, and line-set lengths for a matched MRCOOL DIY multi-zone system.START BUILDING →
    Installation pathDesigned for DIY InstallationExplore homeowner-oriented mini splits with factory-precharged connection options.Shop DIY systems →Installation pathProfessional InstallationCompare Olympus and Advantage systems intended for traditional HVAC installation.Compare systems → Planning a complete system?Financing AvailableExplore payment options for a complete multi-zone purchase.View financing →
    Not sure what size?Plan before you buyUse the BTU calculator as a starting point for system sizing.Open BTU calculator →
    • Build & Plan›
      • Build a Central System
      • Manual J Load Calculator
      • Get a Free Quote
    • Shop by System›
      • Central Ducted Heat Pumps
      • Dual Fuel Systems
      • Package Units
      • Gas Furnaces
    • Shop by Series›
      • Universal Series
      • Hyper Heat Series
      • VersaPro Series
      • Signature Series
    DIY hybrid configurationPlan a DIY Hybrid SystemCombine a central ducted air handler with supported wall or cassette zones on a DIY multi-zone condenser.Open Hybrid Builder →
    Before you chooseInstallation Varies by ConfigurationSome eligible split systems offer precharged connection options. Packaged, furnace, and traditional configurations follow professional-installation paths.Get selection help → Planning a whole-home purchase?Financing AvailableReview payment options for larger equipment purchases.Explore financing →
    Sizing & planningManual J Load CalculatorEstimate heating and cooling loads before selecting equipment.Open Manual J →
  • TravelCool rooftop RV air conditioner at a lakeside campsite Comfort for the roadRV air conditioningTravelCoolInverter-driven rooftop cooling and supplemental heat-pump heating for RV applications.Explore TravelCool → MRCOOL Monoblock heat pump installed through an exterior wall All-in-one HVACMonoblock Heat PumpsHeating and cooling without a separate outdoor unit.Shop Monoblock → MRCOOL compact refrigeration equipment for a walk-in cooler Walk-in coolingCompact RefrigerationSelf-contained refrigeration for walk-in cooler and freezer applications.Explore Refrigeration → MRCOOL industrial HVLS fan installed in a warehouse Large-space airflowIndustrial HVLS FansLarge-diameter fans for warehouses and other expansive spaces.Shop HVLS Fans →
    More specialtyWater Heaters →MRBREEZE →View all Specialty Equipment →
    • Replacement Parts›
      • Shop All Replacement Parts
      • Control Boards
      • Fan Motors
    • Installation & Accessories›
      • Line Sets
      • Installation Kits
      • Couplers, Wire & Adapters
      • Condenser Mounting
      • Tools & Gauges
    Replacement partsStart with your model numberShop genuine MRCOOL replacement parts. Confirm equipment details before ordering.Shop replacement parts →
    Installation & accessoriesInstallation essentialsLine sets, mounting, kits, controls, and installation accessories.Shop accessories →
    • System Builders›
      • Multi-Zone System Builder
      • Hybrid System Builder
      • Olympus System Builder
    • Sizing Tools›
      • Mini-Split BTU Calculator
      • Manual J Load Calculator
      • HVAC Replacement & Sizing Guide
    RecommendedPrimary configuration toolBuild a DIY Multi-Zone SystemBuild a matched MRCOOL DIY multi-zone system from zones through line-set lengths.Start building →
    Sizing toolsFind the right sizeUse the BTU calculator or Manual J tools before choosing equipment.Start sizing → After you planExplore Payment OptionsAfter configuring and sizing your project, review available financing options.View financing →
    • Start Learning›
      • Mini Splits 101
      • DIY Installation Guide
      • Tools & Calculators
    • Help & Reference›
      • DIY FAQs
      • Error Codes
      • QMID Codes
    • Official Product Information›
      • Knowledge Center
      • Manuals & Documents
      • AHRI & EnergyGuide Resources
    • View All Learning Center
    Learn the basicsNew to MRCOOL? Start hereGet straightforward guides for choosing, planning, and installing your system.Start learning →
    • Customer Support›
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      • Start a Return
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    Customer supportHow can we help?Contact our team, track an order, start a return, or find warranty help.Get help →
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USA's Most Trusted MRCOOL Dealer – Free Shipping On Systems*

MRCOOL DIY DIRECT / LIMITED-TIME PROJECT PACKS

5th Gen E-Star Single-Zone Project Packs

Complete 5th Gen E-Star single-zone systems with LineGuard and a Care Kit. Choose one system or a package for several spaces. Standard freight included on buy-now packages.*

Shop Project Packs ↗

Search results

  • MRCOOL replacement outdoor condenser fan blade

    Axial Flow Fan for MrCool Central Heat Pump Condenser Universal Series 2-3 Ton

    Sold out

    Axial Flow Fan for MrCool Central Heat Pump Condenser Universal Series 2-3 Ton

    Regular price $81.37
    Sale price $81.37 Regular price $92.43
    You Save: $11.06
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  • MRCOOL replacement cross-flow blower wheel

    Genuine MRCOOL Replacement Crossflow Fan for Olympus Series Air Handler (O-09-HP-WMAH-230B & O-12-HP-WMAH-230B)

    Sold out

    Genuine MRCOOL Replacement Crossflow Fan for Olympus Series Air Handler (O-09-HP-WMAH-230B & O-12-HP-WMAH-230B)

    Regular price $124.63
    Sale price $124.63 Regular price $141.57
    You Save: $16.94
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    ❌ Out of Stock
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  • MRCOOL 18K Wall Mounting Bracket for Ductless Mini Split Air Handler – Heavy-Duty Steel Mount Plate for Secure Installation

    Replacement Installation Plate for 18k Wall Mounted MRCOOL Mini Split Air Handler

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    Replacement Installation Plate for 18k Wall Mounted MRCOOL Mini Split Air Handler

    Regular price $69.01
    Sale price $69.01 Regular price $78.39
    You Save: $9.38
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  • Reusable washable air filter 2-pack for MrCool 36k (3-ton) wall mounted air handlers, compatible with models A-36-HP-WMAH-230C and DIY-36-HP-MWAH-230B.

    Reusable Air Filter Set for MrCool 36k (3-Ton) Wall Mounted Air Handlers – 2-Pack | Fits A-36-HP-WMAH-230C & DIY-36-HP-MWAH-230B

    Sold out

    Reusable Air Filter Set for MrCool 36k (3-Ton) Wall Mounted Air Handlers – 2-Pack | Fits A-36-HP-WMAH-230C & DIY-36-HP-MWAH-230B

    Regular price $65.92
    Sale price $65.92 Regular price $74.88
    You Save: $8.96
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    ❌ Out of Stock
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  • MRCOOL replacement outdoor condenser fan blade

    Axial Flow Fan for MRCOOL Outside Condenser A-18-HP-C-230B

    Sold out

    Axial Flow Fan for MRCOOL Outside Condenser A-18-HP-C-230B

    Regular price $81.37
    Sale price $81.37 Regular price $92.43
    You Save: $11.06
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  • MRCOOL Universal 2 to 3 Ton 20 SEER Central Heat Pump Air Conditioner System MDU18024036 -

    MRCOOL Universal 2 to 3 Ton 20 SEER Central Heat Pump Air Conditioner System MDU18024036

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    MRCOOL Universal 2 to 3 Ton 20 SEER Central Heat Pump Air Conditioner System MDU18024036

    Regular price $3,738.00
    Sale price $3,738.00 Regular price $4,672.50
    You Save: $934.50
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  • MRCOOL Universal 4 to 5 Ton (48000-60000 BTU) 18 SEER Central Heat Pump Air Conditioner System MDU18048060 -

    MRCOOL Universal 4 to 5 Ton (48000-60000 BTU) 18 SEER Central Heat Pump Air Conditioner System MDU18048060

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    MRCOOL Universal 4 to 5 Ton (48000-60000 BTU) 18 SEER Central Heat Pump Air Conditioner System MDU18048060

    Regular price $4,759.00
    Sale price $4,759.00 Regular price $5,948.75
    You Save: $1,189.75
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  • Electric Heat Strip Kit for MrCool Signature Series Air Handler - with Circuit Breaker -

    Electric Heat Strip Kit for MrCool Signature Series Air Handler - with Circuit Breaker

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    Electric Heat Strip Kit for MrCool Signature Series Air Handler - with Circuit Breaker

    Regular price $161.00
    Sale price $161.00 Regular price $201.25
    You Save: $40.25
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