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    MRCOOL DIY® 5th Gen E Star 18,000 BTU Single Zone Mini Split Complete System with 25ft. Line Set 230V, DIY-18-HP-WM-230D25-O Shop complete systems5th Gen DIY comfortShop complete E-Star single-zone systems.Shop E-Star systems →
    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 →
    Need a custom combination?Build a DIY Multi-Zone SystemConfigure a system around your rooms.START BUILDING →
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    MRCOOL VersaPro 2nd Gen 18,000 BTU central ducted heat pump system with pre-charged condenser and air handler Explore central HVACWhole-home comfortExplore systems, equipment and installation options.Explore central HVAC →
    Before you chooseInstallation Varies by ConfigurationSome eligible split systems offer precharged options; packaged, furnace, and traditional configurations follow professional-installation paths.Get selection help →Mix ducted & ductlessBuild a DIY Hybrid SystemPlan compatible ducted and ductless zones together.Open Hybrid Builder → Planning a whole-home purchase?Financing AvailableReview payment options for larger equipment purchases.Explore financing →
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    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 →
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    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 →
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    Replacement partsStart with your model numberShop genuine MRCOOL replacement parts. Confirm equipment details before ordering.Shop replacement parts →
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    RecommendedPrimary configuration toolBuild a DIY Multi-Zone SystemBuild a matched MRCOOL DIY multi-zone system from zones through line-set lengths.Start building →
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MRCOOL DIY Direct
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    • Shop systems
      • All mini splits
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      • Wall-mount indoor units only
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    MRCOOL DIY® 5th Gen E Star 18,000 BTU Single Zone Mini Split Complete System with 25ft. Line Set 230V, DIY-18-HP-WM-230D25-O Shop complete systems5th Gen DIY comfortShop complete E-Star single-zone systems.Shop E-Star systems →
    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 →
    Need a custom combination?Build a DIY Multi-Zone SystemChoose zones, indoor units and line-set lengths for your project.START BUILDING →
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      • Electric heat strips
    MRCOOL VersaPro 2nd Gen 18,000 BTU central ducted heat pump system with pre-charged condenser and air handler Explore central HVACWhole-home comfortExplore systems, equipment and installation options.Explore central HVAC →
    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 →Mix ducted & ductlessBuild a DIY Hybrid SystemPlan compatible ducted and ductless zones together.Open Hybrid Builder → 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 →
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      • DIY precharged line sets
      • Extension bundles
      • Couplers & control wire
      • Precharged line-set adapters
      • Condenser mounts & pads
    • Covers, drainage & controls
      • Line-set cover kits
      • Cover fittings & extensions
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      • Tools, gauges & supplies
      • Cleaners & maintenance
    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 →
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    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 →
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      • Mini Splits 101
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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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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.*

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  • MRCOOL DIY® 5th Gen E Star 9,000 BTU Single Zone Mini Split Complete System with 25ft. Line Set 115V, DIY-09-HP-WM-115D25-O

    MRCOOL DIY® 5th Gen E Star 9,000 BTU Single Zone Mini Split Complete System with 25ft. Line Set 115V, DIY-09-HP-WM-115D25-O

    SALE

    MRCOOL DIY® 5th Gen E Star 9,000 BTU Single Zone Mini Split Complete System with 25ft. Line Set 115V, DIY-09-HP-WM-115D25-O

    No reviews

    ⭐ ENERGY STAR Certified

    ⚡ Voltage: 115V

    🛠️ DIY Installation

    Regular price $2,330.00
    Sale price $2,330.00 Regular price $2,912.50
    You Save: $582.50
    Unit price /  per 
    ✅ In Stock
    Shop Now
    Save $582.50
  • MRCOOL DIY® 5th Gen E Star 12,000 BTU Single Zone Mini Split Complete System with 25ft. Line Set 115V, DIY-12-HP-WM-115D25-0

    MRCOOL DIY® 5th Gen E Star 12,000 BTU Single Zone Mini Split Complete System with 25ft. Line Set 115V, DIY-12-HP-WM-115D25-0

    SALE

    MRCOOL DIY® 5th Gen E Star 12,000 BTU Single Zone Mini Split Complete System with 25ft. Line Set 115V, DIY-12-HP-WM-115D25-0

    3 reviews

    ⭐ ENERGY STAR Certified

    ⚡ Voltage: 115V

    🛠️ DIY Installation

    Regular price $2,370.00
    Sale price $2,370.00 Regular price $2,962.50
    You Save: $592.50
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    ✅ In Stock
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  • MRCOOL DIY E-Star Single-Zone Mini Split — 9,000 BTU, 25 ft

    MRCOOL 5th Gen ENERGY STAR® DIY Single Zone Mini Split (9k–36k BTU)

    SALE

    MRCOOL 5th Gen ENERGY STAR® DIY Single Zone Mini Split (9k–36k BTU)

    14 reviews

    ♻️ ENERGY STAR® Certified

    🔧 No HVAC Tech Required

    🛠️ Pre-Charged Lines

    Regular price $2,330.00
    Sale price $2,330.00 Regular price $2,912.50
    You Save: $582.50
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  • MRCOOL Advantage 4G 12,000 BTU 20.5 SEER Ductless Mini Split Air Conditioner and Heat Pump - 230V -

    MRCOOL Advantage 4G 12,000 BTU 20.5 SEER Ductless Mini Split Air Conditioner and Heat Pump - 230V

    Sold out

    MRCOOL Advantage 4G 12,000 BTU 20.5 SEER Ductless Mini Split Air Conditioner and Heat Pump - 230V

    No reviews
    Regular price $1,090.00
    Sale price $1,090.00 Regular price $1,362.50
    You Save: $272.50
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  • MRCOOL Advantage 4G 12K BTU, 20 SEER, 115V, Ductless Mini Split Air Conditioner and Heat Pump with 16 Ft. Line Set (A-12-HP-115C) -

    MRCOOL Advantage 4G 12K BTU, 20 SEER, 115V, Ductless Mini Split Air Conditioner and Heat Pump with 16 Ft. Line Set (A-12-HP-115C)

    Sold out

    MRCOOL Advantage 4G 12K BTU, 20 SEER, 115V, Ductless Mini Split Air Conditioner and Heat Pump with 16 Ft. Line Set (A-12-HP-115C)

    No reviews
    • 20.8 SEER2 115V with variable speed DC inverter compressor technology that cuts operating costs for heating and cooling
    • Designed to heat and cool a single 350-550 sq ft room
    • 1-Year compressor and 2-year parts warranty when registered and when installed by a licensed professional
    Regular price $1,160.00
    Sale price $1,160.00 Regular price $1,450.00
    You Save: $290.00
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  • MRCOOL Advantage 4G 18,000 BTU 19 SEER Ductless Mini Split Air Conditioner and Heat Pump - 230V -

    MRCOOL Advantage 4G 18,000 BTU 19 SEER Ductless Mini Split Air Conditioner and Heat Pump - 230V

    Sold out

    MRCOOL Advantage 4G 18,000 BTU 19 SEER Ductless Mini Split Air Conditioner and Heat Pump - 230V

    No reviews
    Regular price $1,312.00
    Sale price $1,312.00 Regular price $1,640.00
    You Save: $328.00
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    ❌ Out of Stock
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  • MRCOOL Advantage 4G 24,000 BTU 18 SEER Ductless Mini Split Air Conditioner and Heat Pump - 230V -

    MRCOOL Advantage 4G 24,000 BTU 18 SEER Ductless Mini Split Air Conditioner and Heat Pump - 230V

    Sold out

    MRCOOL Advantage 4G 24,000 BTU 18 SEER Ductless Mini Split Air Conditioner and Heat Pump - 230V

    No reviews
    • 18 SEER2 230V with variable speed DC inverter compressor technology that cuts operating costs for heating and cooling
    • Designed to heat and cool a single 800-1050 sq ft room
    • 1-Year compressor and 2-year parts warranty when registered and when installed by a licensed professional
    Regular price $1,665.00
    Sale price $1,665.00 Regular price $2,081.25
    You Save: $416.25
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  • MRCOOL Advantage 4G 36,000 BTU 17.5 SEER Ductless Mini Split Air Conditioner and Heat Pump - 230V/60Hz -

    MRCOOL Advantage 4G 36,000 BTU 17.5 SEER Ductless Mini Split Air Conditioner and Heat Pump - 230V/60Hz

    Sold out

    MRCOOL Advantage 4G 36,000 BTU 17.5 SEER Ductless Mini Split Air Conditioner and Heat Pump - 230V/60Hz

    No reviews
    • 17.5 SEER2 230V with variable speed DC inverter compressor technology that cuts operating costs for heating and cooling
    • Designed to heat and cool a single 1050-1550 sq ft room
    • 1-Year compressor and 2-year parts warranty when registered and when installed by a licensed professional
    Regular price $2,372.00
    Sale price $2,372.00 Regular price $2,965.00
    You Save: $593.00
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    ❌ Out of Stock
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  • MRCOOL DIY 4th Gen complete mini-split system kit with indoor unit, outdoor condenser, controls, and installation materials

    MRCOOL DIY 4th Gen 12K BTU, 1 Ton, 22 SEER, Ductless Mini-Split Heat Pump Complete System (DIY-12-HP-WM-115C25)

    Sold out

    MRCOOL DIY 4th Gen 12K BTU, 1 Ton, 22 SEER, Ductless Mini-Split Heat Pump Complete System (DIY-12-HP-WM-115C25)

    12 reviews
    • Energy Star certified 22 SEER, 11.5 HSPF
    • Easy DIY installation: pre-charged R-410A 25ft quick connect line doesn't require special tools, equipment, or training
    • Designed to efficiently heat and cool a single 500 Sq Ft room
    Regular price $1,775.00
    Sale price $1,775.00 Regular price $2,218.75
    You Save: $443.75
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  • MRCOOL DIY 4th Gen 18K BTU Ductless Mini-Split Heat Pump, 1.5 Ton, 22 SEER, w/ Wall Mount Air Handler & 25 Ft. Line Set (DIY-18-HP-WM-230C25) - 18HPW230C25

    MRCOOL DIY 4th Gen 18K BTU Ductless Mini-Split Heat Pump, 1.5 Ton, 22 SEER, w/ Wall Mount Air Handler & 25 Ft. Line Set (DIY-18-HP-WM-230C25)

    Sold out

    MRCOOL DIY 4th Gen 18K BTU Ductless Mini-Split Heat Pump, 1.5 Ton, 22 SEER, w/ Wall Mount Air Handler & 25 Ft. Line Set (DIY-18-HP-WM-230C25)

    6 reviews

    Energy Star certified 22 SEER, 11.5 HSPF

    • Easy DIY installation: pre-charged R-410A 25ft quick connect line doesn't require special tools, equipment, or training
    • Designed to efficiently heat and cool a single 750 Sq Ft room
    Regular price $2,175.00
    Sale price $2,175.00 Regular price $2,718.75
    You Save: $543.75
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    ❌ Out of Stock
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  • MRCOOL DIY 4th Gen 18K BTU Mini-Split Heat Pump with Ceiling Cassette & 25 Ft. Line Set

    MRCOOL DIY 4th Gen 18K BTU, 1.5 Ton, 22 SEER, Ductless Mini-Split Heat Pump Complete System with Ceiling Cassette Air Handler & 25 Ft. Line Set

    Sold out

    MRCOOL DIY 4th Gen 18K BTU, 1.5 Ton, 22 SEER, Ductless Mini-Split Heat Pump Complete System with Ceiling Cassette Air Handler & 25 Ft. Line Set

    No reviews
    Regular price $2,888.00
    Sale price $2,888.00 Regular price $3,610.00
    You Save: $722.00
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  • MRCOOL DIY 4th Gen complete mini-split system kit with indoor unit, outdoor condenser, controls, and installation materials

    MRCOOL DIY 4th Gen 24K BTU, 2 Ton, 20.5 SEER, Ductless Mini-Split Heat Pump Complete System (DIY-24-HP-WM-230C25)

    Sold out

    MRCOOL DIY 4th Gen 24K BTU, 2 Ton, 20.5 SEER, Ductless Mini-Split Heat Pump Complete System (DIY-24-HP-WM-230C25)

    10 reviews
    • Energy Star certified 20.5 SEER, 10.5 HSPF
    • Easy DIY installation: pre-charged R-410A 25ft quick connect line doesn't require special tools, equipment, or training
    • Designed to efficiently heat and cool a single 1000 Sq Ft room
    Regular price $2,518.00
    Sale price $2,518.00 Regular price $3,147.50
    You Save: $629.50
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    ❌ Out of Stock
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  • MRCOOL DIY 4th Gen complete mini-split system kit with indoor unit, outdoor condenser, controls, and installation materials

    MRCOOL DIY 4th Gen 36K BTU, 3 Ton, 18 SEER, Ductless Mini-Split Heat Pump Complete System (DIY-36-HP-WM-230C25)

    Sold out

    MRCOOL DIY 4th Gen 36K BTU, 3 Ton, 18 SEER, Ductless Mini-Split Heat Pump Complete System (DIY-36-HP-WM-230C25)

    2 reviews
    • Energy efficient 18 SEER, 12 HSPF
    • Easy DIY installation: pre-charged R-410A 25ft quick connect line doesn't require special tools, equipment, or training
    • Designed to efficiently heat and cool a single 1500 Sq Ft room
    Regular price $2,888.00
    Sale price $2,888.00 Regular price $3,610.00
    You Save: $722.00
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  • MRCOOL DIY Easy Pro® 12K BTU Ductless Mini Split Heat Pump Complete System, EZPRO-12-HP-11516 -

    MRCOOL DIY Easy Pro® 12K BTU Ductless Mini Split Heat Pump Complete System, EZPRO-12-HP-11516

    Sold out

    MRCOOL DIY Easy Pro® 12K BTU Ductless Mini Split Heat Pump Complete System, EZPRO-12-HP-11516

    4 reviews
    • Energy efficient 18 SEER, 11.1 HSPF
    • Easy DIY installation: pre-charged R-410A 16ft quick connect line doesn't require special tools, equipment, or training
    • Designed to efficiently heat and cool a single 500 Sq Ft room
    Regular price $1,785.00
    Sale price $1,785.00 Regular price $2,231.25
    You Save: $446.25
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    ❌ Out of Stock
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  • MRCOOL Easy Pro mini-split system with outdoor condenser, wall unit, line set, and controls

    MRCOOL DIY Easy Pro® 18K BTU Ductless Mini Split Heat Pump Complete System, EZPRO-18-HP-23016

    Sold out

    MRCOOL DIY Easy Pro® 18K BTU Ductless Mini Split Heat Pump Complete System, EZPRO-18-HP-23016

    No reviews
    • Energy efficient 18.5 SEER, 9.7 HSPF
    • Easy DIY installation: pre-charged R-410A 16ft quick connect line doesn't require special tools, equipment, or training
    • Designed to efficiently heat and cool a single 750 Sq Ft room
    Regular price $1,716.00
    Sale price $1,716.00 Regular price $2,145.00
    You Save: $429.00
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  • MRCOOL DIY Easy Pro® 24K BTU Ductless Mini Split Heat Pump Complete System, EZPRO-24-HP-23016 -

    MRCOOL DIY Easy Pro® 24K BTU Ductless Mini Split Heat Pump Complete System, EZPRO-24-HP-23016

    Sold out

    MRCOOL DIY Easy Pro® 24K BTU Ductless Mini Split Heat Pump Complete System, EZPRO-24-HP-23016

    No reviews
    • Energy efficient 18 SEER, 10.3 HSPF
    • Easy DIY installation: pre-charged R-410A 16ft quick connect line doesn't require special tools, equipment, or training
    • Designed to efficiently heat and cool a single 1000 Sq Ft room
    Regular price $1,918.00
    Sale price $1,918.00 Regular price $2,397.50
    You Save: $479.50
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  • Discover the MRCOOL Easy Pro 9k BTU Ductless Mini-Split Heat Pump System. Energy-efficient, DIY installation, SmartHVAC Wi-Fi control, and more. Shop with confidence from MRCOOL DIY Direct, the USA’s most trusted MRCOOL dealer. Perfect for heating and cooling spaces up to 350 sq. ft. Order now!

    MRCOOL DIY Easy Pro® 9K BTU Ductless Mini Split Heat Pump Complete System, EZPRO-09-HP-11516

    Sold out

    MRCOOL DIY Easy Pro® 9K BTU Ductless Mini Split Heat Pump Complete System, EZPRO-09-HP-11516

    2 reviews
    • Energy efficient 20 SEER, 10.3 HSPF
    • Easy DIY installation: pre-charged R-410A 16ft quick connect line doesn't require special tools, equipment, or training
    • Designed to efficiently heat and cool a single 350 Sq Ft room
    Regular price $1,463.00
    Sale price $1,463.00 Regular price $1,828.75
    You Save: $365.75
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  • MRCOOL DIY 5th Gen EasyPro 18,000 BTU 230V single zone ductless mini split heat pump complete system with 16 ft DIY Quick Connect line set and DIYPRO cable, R-454B refrigerant, model EZPRO-18-HP-23016D-O

    MRCOOL DIY 5th Gen Easy Pro 18K BTU Single Zone Mini Split Complete System 230V with 16 ft. DIY Quick Connect Line Set and DIYPRO Cable (R-454B), EZPRO-18-HP-23016D-O

    Sold out

    MRCOOL DIY 5th Gen Easy Pro 18K BTU Single Zone Mini Split Complete System 230V with 16 ft. DIY Quick Connect Line Set and DIYPRO Cable (R-454B), EZPRO-18-HP-23016D-O

    1 review

    💨 Ultra Quiet Operation
    ⚡ Voltage: 240V
    🛠️ Quick & Easy DIY Install

    Regular price $1,827.00
    Sale price $1,827.00 Regular price $2,283.75
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  • MRCOOL DIY 4th Gen 18K BTU Mini-Split Heat Pump with Ceiling Cassette & 25 Ft. Line Set

    MRCOOL DIY 5th Gen E-Star Series 18K BTU, 1.5 Ton, 21.5 SEER2 Ductless Mini-Split Heat Pump System with Ceiling Cassette Air Handler – R-454B

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    MRCOOL DIY 5th Gen E-Star Series 18K BTU, 1.5 Ton, 21.5 SEER2 Ductless Mini-Split Heat Pump System with Ceiling Cassette Air Handler – R-454B

    1 review

    ⭐ 21.5 SEER2
    ⚡ DIY Installation
    ❄️ Ceiling Cassette

    Regular price $3,410.00
    Sale price $3,410.00 Regular price $4,262.50
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  • MRCOOL DIY Hyper Heat 12,000 BTU OuttaSight® ceiling cassette air handler for single zone mini split, low-profile recessed indoor unit for concealed heating and cooling in tight or finished spaces.

    MRCOOL DIY 12K Hyper Heat Ceiling Cassette Mini Split System – 23.5 SEER2, -22°F Heating, Pre-Charged Line Set

    SALE

    MRCOOL DIY 12K Hyper Heat Ceiling Cassette Mini Split System – 23.5 SEER2, -22°F Heating, Pre-Charged Line Set

    No reviews
    Regular price $3,297.00
    Sale price $3,297.00 Regular price $4,121.25
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