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Mr Cool Accessories

Thinking of installing a MRCOOL DIY system? Don't overlook the accessories that make it a truly simple and safe project. Our guide breaks down the must-have components, like disconnect boxes and line set couplers, to ensure your installation is a success from start to finish.

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Mr Cool Accessories

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Original price $273.75 - Original price $705.00
Original price $273.75 - Original price $705.00
Original price $273.75
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Current price $231.00

MRCOOL Lineset for DIY Mini Split Systems

MRCOOL DIY
Out of stock

MRCOOL DIY Lineset for DIY Mini Split Systems The MRCOOL DIY Line Set is designed for installation of all MRCOOL DIY ductless mini splits. T...

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Original price $273.75 - Original price $705.00
Original price $273.75 - Original price $705.00
Original price $273.75
$231.00 - $513.00
$231.00 - $513.00
Current price $231.00
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Original price $161.25
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Current price $132.00
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Current price $132.00

MRCOOL LineGuard 4.5" Complete Line Set Cover Kit - 12 ft

MRCOOL DIY
In stock

The MRCOOL LineGuard Line Set Cover is the perfect protective exterior line set cover that is designed for use with any ductless mini split system...

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Original price $161.25
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Original price $111.25
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Current price $77.00
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MRCOOL Wall Mounting Bracket for 9K, 12K & 18K Mini Split Condensers

MRCOOL DIY
In stock

MRCOOL Condenser Wall Mounting Kit for 9K, 12K & 18K Mini Split Systems With the MRCOOL Mounting Bracket Kit for Mini Split Condensers, you can...

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Original price $111.25
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Current price $77.00
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Original price $325.00 - Original price $711.00
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Current price $325.00

MRCOOL No-Vac 3/8 3/4 Precharged Lineset for Universal Series

MRCOOL DIY
In stock

MRCOOL No-Vac 3/8 3/4 Precharged Lineset for Universal Series The MRCOOL No-Vac 3/8 3/4 Precharged Lineset is designed to simplify the installation...

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Original price $325.00 - Original price $711.00
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Original price $230.00
Original price $230.00 - Original price $230.00
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Current price $184.00
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Current price $184.00

MRCOOL 75ft Line Set Coupler Kit for DIY Single Zone and Multizone 24K, 36K & 48K Air Handlers - 3/8" x 5/8"

MRCOOL DIY
In stock

MRCOOL 75ft Coupler Kit for DIY Line Sets 24K, 36K & 48K Air Handlers - 3/8" x 5/8" With the 75ft MRCOOL DIY Coupler Kit, you can con...

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Original price $230.00
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Current price $184.00
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Original price $165.00
Original price $165.00 - Original price $165.00
Original price $165.00
Current price $121.00
$121.00 - $121.00
Current price $121.00

MRCOOL Wall Mounting Bracket for 24K, 27K & 36K Mini Split Condensers

MRCOOL DIY
In stock

MRCOOL Condenser Wall Mounting Kit for 24K, 27K & 36K Mini Split Systems With the MRCOOL Mounting Bracket Kit for Mini Split Condensers, you c...

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Original price $165.00
Original price $165.00 - Original price $165.00
Original price $165.00
Current price $121.00
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Original price $1,052.50 - Original price $1,295.00
Original price $1,052.50 - Original price $1,295.00
Original price $1,052.50
$843.00 - $1,037.00
$843.00 - $1,037.00
Current price $843.00

[Phased Out] MRCOOL Universal Series R410A A-Coil

MRCOOL DIY
Out of stock

R-410A refrigerant is being phased out due to its high global warming potential (GWP), with the Environmental Protection Agency (EPA) mandating a t...

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Original price $1,052.50 - Original price $1,295.00
Original price $1,052.50 - Original price $1,295.00
Original price $1,052.50
$843.00 - $1,037.00
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Current price $843.00
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Original price $90.00
Original price $90.00 - Original price $90.00
Original price $90.00
Current price $72.00
$72.00 - $72.00
Current price $72.00

Outdoor Pad for Mini Split Condenser

MRCOOL DIY
In stock

Condenser Pad for Mini Split Systems Condenser pad for the outdoor condenser unit. Fits 9,000 BTU - 36,000 BTU condensers.  Dimensions: 18" x 38...

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Original price $90.00
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Current price $72.00
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Original price $633.11 - Original price $633.11
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$633.11
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MrCool 50' R-454B No-Vac Lineset

MRCOOL DIY
In stock

50' R-454B No-Vac Lineset: Effortless Comfort for Your Sustainable Home Experience unparalleled ease and efficiency with the 50' R-454B No-Vac Line...

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Original price $633.11 - Original price $633.11
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Original price $278.84 - Original price $278.84
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$278.84
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Current price $278.84

MrCool 20kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit

MRCOOL DIY
In stock

20kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit: Experience Unmatched Comfort and Efficiency Transform your home into a haven of consistent wa...

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Original price $278.84 - Original price $278.84
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$278.84
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Original price $237.00 - Original price $237.00
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$237.00
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Current price $237.00

MrCool 15kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit

MRCOOL DIY
In stock

15kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit: Experience Unmatched Comfort and Efficiency Transform your home's heating system with the 15k...

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Original price $237.00 - Original price $237.00
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Original price $189.13 - Original price $189.13
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Current price $189.13

MrCool 10kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit

MRCOOL DIY
In stock

10kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit: Experience Unmatched Comfort and Efficiency Transform your home into an oasis of perfect warm...

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Original price $189.13 - Original price $189.13
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$189.13
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Original price $149.00 - Original price $149.00
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$149.00
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Current price $149.00

MrCool 8kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit

MRCOOL DIY
In stock

8kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit: Experience Unmatched Home Comfort Transform your home into a sanctuary of warmth and efficienc...

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Original price $149.00 - Original price $149.00
Original price
$149.00
$149.00 - $149.00
Current price $149.00
Original price $146.01 - Original price $146.01
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$146.01
$146.01 - $146.01
Current price $146.01

MrCool 5kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit

MRCOOL DIY
In stock

5kW VersaPro & Hyper Heat 2nd Gen 454B Heat Kit: Experience Unmatched Comfort and Efficiency Transform your home's heating system with the 5kW ...

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Original price $146.01 - Original price $146.01
Original price
$146.01
$146.01 - $146.01
Current price $146.01
Original price $451.00 - Original price $451.00
Original price
$451.00
$451.00 - $451.00
Current price $451.00

MrCool DIY Line Set Coupler Kit - 24/36k BTU - 75ft

MRCOOL DIY
In stock

DIY Line Set Coupler Kit 24/36k - 75ft: Seamless HVAC Installation for Your Home Imagine the satisfaction of a perfectly installed HVAC system, wit...

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Original price $451.00 - Original price $451.00
Original price
$451.00
$451.00 - $451.00
Current price $451.00
Original price $372.00 - Original price $372.00
Original price
$372.00
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Current price $372.00

MrCool DIY Line Set Coupler Kit - 9k/12k/18k BTU - 75ft

MRCOOL DIY
In stock

DIY Line Set Coupler Kit 9/12/18k - 75ft: Effortless HVAC Installation, Ultimate Peace of Mind Transform your HVAC installation experience with the...

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Original price $372.00 - Original price $372.00
Original price
$372.00
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Current price $372.00
Original price $61.25
Original price $61.25 - Original price $61.25
Original price $61.25
Current price $49.00
$49.00 - $49.00
Current price $49.00

Non-Fusible A/C Disconnect Box, Gray - 60A 120/240V

MRCOOL DIY
In stock

Mini Split Air Conditioning Disconnect Box - 120/240V 60Amps Non-fused pullout, 60A, 120/240V, 10 kAIC, #14-3 Cu/Al 60°C or 75°C, NEMA 3R Galvan...

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Original price $61.25
Original price $61.25 - Original price $61.25
Original price $61.25
Current price $49.00
$49.00 - $49.00
Current price $49.00
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Don't Sweat the Small Stuff: Your Ultimate Guide to MRCOOL DIY Accessories


So you’ve got your shiny new MRCOOL DIY mini-split, ready to banish the summer heat (or winter chill). You’re already picturing yourself sipping lemonade in climate-controlled bliss. But before you get there, let's talk about the unsung heroes of the HVAC world: the accessories. Think of them as the trusty sidekicks to your superhero cooling and heating system—they might not get the spotlight, but the job wouldn’t get done without them.



Key Takeaways



  • Simplify Your Installation: Accessories like the MRCOOL DIY Line Set Coupler Kits make installation genuinely simple, saving you time, money, and the headache of calling a pro for complex tasks.

  • Enhance Safety & Compliance: A crucial component like the A/C Disconnect Box isn't just an add-on; it's essential for meeting electrical codes and ensuring safe maintenance for years to come.

  • Extend Your System's Reach: Need to place your outdoor unit a little further away? Couplers and line set extensions give you the flexibility to install your system exactly where you need it, without compromising performance.



Why the Right Accessories Are a DIYer's Best Friend


Let's be honest, the term "accessories" can sometimes sound like optional extras—the sprinkles on the sundae. But when it comes to installing a powerful piece of equipment like a mini-split, the right accessories are the bowl that holds it all together. They are the difference between a frustrating weekend project that ends with a frantic call to a technician and a triumphant high-five moment of self-sufficient success.


At Generation Eco Store, we know you’re a savvy homeowner who values quality, efficiency, and the satisfaction of a job well done. That’s why we’ve carefully curated this collection of MRCOOL DIY accessories. We've sifted through the options to bring you the essential, high-quality components that take the guesswork out of your project and ensure your new system runs perfectly from day one.



Why These Products Matter for Your Home


The DIY revolution has transformed home improvement, and MRCOOL is at the forefront of that movement for home comfort. These accessories are what truly unlock that potential for everyone, not just seasoned HVAC professionals. They empower you to take complete control of your installation, saving you hundreds (or even thousands) in labor costs.


Think about these scenarios:



  • You've found the perfect, out-of-the-way spot for your outdoor condenser, but it's 40 feet from your indoor unit. A Line Set Coupler Kit makes that longer run possible without a single custom job.

  • You’re prepping for a final electrical inspection and want to ensure everything is up to snuff. The Non-Fusible A/C Disconnect Box is your ticket to a code-compliant, safe, and approved setup.

  • You've started a project only to realize you need a specialized, expensive tool you'll only use once. These accessories are designed to work with standard tools you likely already have, keeping your project on budget and on schedule.



The Big Benefits of Choosing Quality MRCOOL Accessories


Investing in the right supporting parts for your MRCOOL system pays off immediately and for the long haul. Here’s how:



  • Unmatched Ease of Use: The genius of the MRCOOL DIY line is its simplicity. Accessories like the pre-charged line set couplers mean no brazing, no flaring, and no vacuuming. You can achieve a professional, leak-free seal with just a couple of wrenches.

  • Safety and Peace of Mind: An A/C disconnect box provides a clear, safe, and lockable way to cut power for cleaning or maintenance. It’s a non-negotiable for safety, protecting both you and any future service technicians.

  • Flexibility and Performance: Don't let your home's layout dictate your comfort. Longer line set capabilities mean you can place your indoor and outdoor units in the most optimal locations for airflow and aesthetics, ensuring your system runs at peak efficiency and saves you money on energy bills.

  • Durability and Longevity: These aren't flimsy, throwaway parts. From the galvanized steel of the disconnect box to the robust engineering of the couplers, these accessories are built to withstand the elements and function reliably for the life of your system.



Our Top Picks from the Collection


Navigating the options? Here are a few standout essentials from our MRCOOL Accessories collection that our customers love.


1. Non-Fusible A/C Disconnect Box, Gray - 60A 120/240V


Think of this as the master "off" switch for your outdoor unit. It’s not just a suggestion; it’s a safety essential required by electrical code in most areas. This sturdy, weather-resistant box allows you or a technician to safely work on your unit without playing guessing games at the main breaker panel. It’s the small investment that provides huge peace of mind and ensures your installation is professional and compliant.


2. MrCool DIY Line Set Coupler Kit - 9k/12k/18k BTU - 75ft


Have an awkward placement or just need to run your line set a bit further than the standard length allows? This Coupler Kit is your go-to problem-solver. It allows you to securely connect two MRCOOL pre-charged line sets, extending your reach up to 75 feet. Forget calling in an HVAC pro with specialized tools—this kit is designed for a perfect, leak-proof seal with just a couple of wrenches, keeping your DIY project truly DIY.


3. MrCool DIY Line Set Coupler Kit - 24/36k BTU - 75ft


Powering a larger space with a high-capacity 24k or 36k MRCOOL unit? This beefier Coupler Kit is engineered to handle the demands of your more powerful system. Just like its smaller sibling, it provides a simple, reliable way to extend your line set run, giving you the freedom to install your units exactly where you want them for optimal airflow and efficiency. It’s the key to a professional-grade installation without the professional-grade price tag.



How to Choose the Best Accessories for Your Setup


Feeling confident? Great! Here are a few final tips to make sure you grab the right gear:



  1. Match Your BTU Size: This is critical. The line set couplers come in different sizes for a reason—the refrigerant lines are physically different. Double-check if your unit is in the 9k-18k BTU range or the 24k-36k BTU range and buy the corresponding kit.

  2. Measure Twice, Buy Once: Before you add anything to your cart, map out your line set path. Use a measuring tape to determine the exact length you need. This will tell you if the standard line set is enough or if you’ll need an extension and a coupler kit.

  3. Prioritize Safety: The A/C Disconnect Box isn't optional from a safety standpoint. Make it the first accessory you purchase for any mini-split installation that has an outdoor condenser.

  4. Check Local Codes: While a disconnect box is standard, it’s always a smart idea to do a quick search for your local residential electrical codes. A five-minute search can save you a major headache later.



Ready to Complete Your Comfort Zone?


Tackling an HVAC project can feel daunting, but with the right components, it’s one of the most rewarding home improvements you can make. At Generation Eco Store, we’re here to demystify the process and provide the high-quality parts you need to succeed with confidence.


Ready to get started? Explore our Mr Cool Accessories collection and take a confident step toward perfect home comfort. Go on, give yourself that well-deserved pat on the back. You've got this. And if not, well, you'll at least have a very official-looking disconnect box on your wall.

Do I really need a disconnect box for my MRCOOL mini-split?

Yes, absolutely. An A/C disconnect box is required by the National Electrical Code (NEC) for any mini-split condenser unit. It provides a visible, lockable way to shut off power directly at the unit, which is crucial for safe maintenance, cleaning, and service.

Can I make the MRCOOL line set longer than what comes in the box?

You can! That's exactly what the MRCOOL DIY Line Set Coupler Kits are for. They allow you to securely connect two pre-charged line sets to achieve a longer run, up to 75 feet in total, without needing any special vacuuming or charging equipment. Just make sure to buy the coupler kit that matches the BTU size of your unit.

Will using a line set coupler cause my system to leak refrigerant?

When installed correctly, the MRCOOL DIY Coupler Kits are designed to create a secure, long-lasting, and leak-free seal. They use a robust mechanical connection that maintains the integrity of the pre-charged lines. Be sure to follow the instructions and tighten the connectors to the specified torque for a perfect seal.

What tools do I need to install the line set coupler?

The beauty of the MRCOOL DIY system is its simplicity. To install the line set coupler, you typically only need two adjustable wrenches to tighten the threaded connectors. No flaring tools, brazing torches, or vacuum pumps are required, which keeps your project simple and low-cost.

I see couplers for 9k-18k and 24k-36k units. Are they interchangeable?

No, they are not interchangeable. The size of the refrigerant lines differs between the smaller (9k-18k BTU) and larger (24k-36k BTU) units. You must use the coupler kit that is specifically designed for your system's BTU range to ensure a proper fit, a tight seal, and optimal performance.

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