SKU: 3601165445

MRCOOL DIY® 5th Gen E Star 12,000 BTU Single Zone Mini Split Condenser with 25 ft. Line Set 115V, DIY-12-HP-C-115D25-O

$726.75 $807.50
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Description

MRCOOL DIY® 5th Gen E Star 12,000 BTU Single Zone Mini Split Condenser with 25 ft. Line Set 115V, DIY-12-HP-C-115D25-OMRCOOL DIY 5th Gen 12,000 BTU Single Zone Mini Split Condenser Energy Star Certified (DIY 12 HP C 115D25 O) The MRCOOL DIY 5th Gen 12K BTU Single Zone Mini Split Condenser is an energy efficient, high performance solution for heating and cooling spaces 350 to 500 sq. ft. Designed for DIY installation, this outdoor condenser unit comes pre charged with R 454B refrigerant and includes a 25ft. QuickConnect line set, allowing homeowners to set up their

MRCOOL DIY® 5th Gen 12,000 BTU Single Zone Mini Split Condenser – Energy Star Certified (DIY-12-HP-C-115D25-O)

The MRCOOL DIY® 5th Gen 12K BTU Single Zone Mini Split Condenser is an energy-efficient, high-performance solution for heating and cooling spaces 350 to 500 sq. ft. Designed for DIY installation, this outdoor condenser unit comes pre-charged with R-454B refrigerant and includes a 25ft. QuickConnect® line set, allowing homeowners to set up their system without the need for professional HVAC assistance.

This listing includes only the condenser unit—it must be paired with a compatible MRCOOL DIY® 5th Gen air handler to create a complete mini split system.

Key Features & Benefits:

  • DIY Installation – No HVAC Technician Required
  • Pre-charged 25ft. QuickConnect® line set for vacuum-free installation.
  • No specialized tools or experience needed—perfect for DIYers.
  • Perfect for Medium-Sized Spaces
  • 12,000 BTU capacity, ideal for 350-500 sq. ft. rooms.
  • 115V power supply for easy installation with standard home electrical outlets.

Smart Climate Control Compatibility

  • Pair with a compatible MRCOOL DIY® air handler for full system control via remote, SmartHVAC app (iOS & Android), Alexa, and Google Assistant.

Energy-Efficient & Environmentally Friendly Refrigerant

  • Uses R-454B refrigerant, a low-GWP alternative to R-410A for reduced environmental impact and improved efficiency.

DIYPRO® Cable – Enhanced Protection

  • Eliminates the need for electrical conduit, offering superior durability against weather and wildlife damage.

Gold Fin® Condenser – Built to Last

  • Corrosion-resistant coating protects against rust and extends condenser lifespan, ideal for coastal environments.

Industry-Leading Warranty

  • Limited Lifetime Warranty on select components.
  • 7-Year Compressor Warranty and 5-Year Parts Warranty.

Certified Quality & Safety

  • Intertek listed (5031495) for compliance with performance, safety, and energy efficiency standards.

Specifications:

  • Brand: MRCOOL DIY®
  • Model: DIY-12-HP-C-115D25-O
  • Capacity: 12,000 BTU
  • Coverage Area: 350-500 sq. ft.
  • Power Supply: 115V
  • Line Set Length: 25ft. QuickConnect® pre-charged line set
  • Refrigerant Type: R-454B (Lower GWP)
  • Condenser Type: Outdoor Unit Only – Requires Compatible MRCOOL DIY® Air Handler
  • Certifications: Energy Star, Intertek Listed 5031495
  • Compressor Warranty: 7 Years
  • Parts Warranty: 5 Years

Important Notes:

📌 This listing includes only the outdoor condenser unit. You must purchase a compatible MRCOOL DIY® 5th Gen air handler separately for a complete mini split system.

📌 Stock images may be used—actual product appearance may vary slightly.

📌 Professional Installation Not Required – Designed for DIY installation but must be paired with a compatible MRCOOL indoor unit for full operation.

Need Help? Contact Us!

If you have any questions about the MRCOOL DIY® 5th Gen 12K BTU Mini Split Condenser, please call us to speak with a customer service representative. They will be happy to assist you!

As always, purchase your MRCOOL parts and equipment from MRCOOL DIY Direct, the USA’s most trusted MRCOOL dealer.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3601165445

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4.7 ★★★★★
Based on 29 reviews
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Product Reviews
A
Verified Purchase
armine arakelian
Omaha, US
★★★★★ 1
Drying formula and smell bad
Smell so bad and made my hands dry instead of moisturizing. The formula is watery. Maybe it’s fake or expired I am not sure.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 25, 2025
C
Verified Purchase
Cascadian
Chelsea, US
★★★★★ 5
Great For Dog Park Fun -- The Ball Goes Flying
Size: 25in, Style: Sport
I love this thing. It's super well made and It enables me to chuck a ball the entire length of the dog park (I'm a 65 yr old woman with a wimpy arm). My dog is thrilled too. At first I thought it might be too heavy, but that's just not an issue, the weight is fine. For non-throwers like me someone at the dog park gave me a tip --- just look at the area you want to throw the ball. Helped my aim immensely. The 2.5 inch chuck it ball it comes with is my dog's absolute *favorite* . . . it's her security blanket in the kennel while driving, and it's her favorite ball to chase (the only one she'll actually bring back). She loves to chew it and to squish the air out of it, which takes a little effort. Recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2025
L
Verified Purchase
leal536
Charlottesville, US
★★★★★ 5
Great tool!
Size: 18in, Style: Sport
Ok - so I do not have a dog!!! I purchased this item for a completely different purpose! I saw someone using this to gather eggs!! I often go to my daughter and son-in-law's homestead to carry out the chores when they need to be out of town! Well, I am a bit on the short side (4'11") and some of the hens KNOW that a short person is going to be gathering eggs!!! I simply could not reach all of the eggs in a couple of the nesting boxes! So, after seeing someone else use this ball launcher as an egg retriever, I bought one! I am now able to reach ALL of the eggs - one at a time with no breakage! It was a game changer for me. I am sure that it works equally well for dog play!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 15, 2024
S
Verified Purchase
Steven
Cuba, US
★★★★★ 5
A Fun and Engaging Playtime Essential for Active Dogs
Size: 18in, Style: Sport
The ChuckIt! Sport 18M Dog Ball Launcher has been a game-changer in our playtime routine with our energetic and playful dog. This innovative and well-designed ball launcher has become an essential tool to keep our furry friend entertained and active. The 18" length of the launcher provides a comfortable grip for both me and my dog during play. It allows for effortless throwing, making fetch games enjoyable for both of us. The launcher's ergonomic design ensures a smooth and efficient ball-throwing experience, saving me from straining my arm during extended play sessions. The inclusion of a medium-sized ball (2.5") with the launcher is a thoughtful addition. The ball's size and weight are perfect for our medium-sized dog (20-60 pounds), allowing her to easily grab and carry it in her mouth. The ball is also durable and can withstand the enthusiastic chewing of our playful pup. One of the standout features of the ChuckIt! Sport 18M Dog Ball Launcher is its exceptional throwing distance. It allows us to launch the ball far into the distance, providing ample space for our dog to run and fetch. This extended range adds a fun and challenging element to our playtime, keeping our dog engaged and excited. The durable construction of the launcher is commendable. It has proven to withstand rigorous use and outdoor play, making it a reliable and long-lasting investment for our dog's entertainment. Additionally, the launcher's compatibility with other ChuckIt! balls makes it a versatile tool for various play styles and preferences. Whether it's a bouncy rubber ball or a flying disc, the launcher can handle them all. Moreover, using the ChuckIt! Sport 18M Dog Ball Launcher has strengthened the bond between our family and our dog. It encourages interactive play, providing an opportunity for us to engage and connect with our furry companion while promoting exercise and healthy physical activity. In conclusion, the ChuckIt! Sport 18M Dog Ball Launcher has been an absolute joy for our family and our playful dog. Its easy-to-use design, impressive throwing distance, and durability make it a must-have for any dog owner with an active and fetch-loving pet. We highly recommend the ChuckIt! Sport 18M Dog Ball Launcher, along with the included medium ball, for a fun-filled and active playtime experience that both you and your dog will love.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 3, 2023
A
Verified Purchase
Another Floyd
Bozeman, US
★★★★★ 5
Essential kit for those with fetch dogs
Size: 18in, Style: Sport
Now in our 3rd year, my Brittany and I are down to about 40 fetch tosses a day, some 14,600 tosses a year. The Chuck It launcher wears well, so, figure at least 5 years of use, for 73,000 tosses. That makes for a terrific value! There are several key benefits of the Chuck It launchers: One is that you can chuck the ball further than you can throw, which allows you to exercise your dog more easily. The second is that you can pick up and launch the ball without touching it, which means NO slime! And, the Chuck It also gives extra reach when you have to retrieve a ball from sticker brambles. Those are great features for anyone with a fetch dog. If you also happen to have a weak arm or shoulder, the Chuck It launchers provide nice throwing options. I generally throw underhanded. I can't get the full potential range, that way, but, I still get good, long tosses. I curl my second finger above the last bump on the handle, and use a good wrist flick along with arm swing. I've seen others throw side-arm with the Chuck It. I had originally written a second review for the longer 25M Chuck It. Either I, or Amazon messed up, and it looks like I can have only this one review. So, here are my additional thoughts on the 25M: I bought the 25M so that I could throw the ball even further! The good news is, you really can chuck further, with the longer chucker. The bad news is, those longer throws do require more arm and shoulder strength than when using the 18M. This becomes more obvious when you've done 3 or 4 dozen throws. I would recommend the 25M only for those with the youth and/or strength to get the most out of it. Otherwise, I'd say, go with the 18M.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 11, 2016

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