SKU: 34064123492

MRCOOL DIY® 5th Gen 25 ft. 3/8" x 5/8" Pre-Charged Quick Connect Line Set (for 24K & 36K Indoor Units)

Sale price$212.40 Regular price$236.00
Save 10%

Pay in installments of $59.00 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

MRCOOL DIY® 5th Gen 25 ft. 3/8" x 5/8" Pre-Charged Quick Connect Line Set (for 24K & 36K Indoor Units)MRCOOL DIY 5th Gen 25 ft. 3 8" x 5 8" Pre Charged Quick Connect Line Set (for 24K & 36K Indoor Units) The MRCOOL DIY 5th Generation 25 ft. Pre Charged Quick Connect Line Set is the standard length refrigerant line set for MRCOOLs 24K and 36K indoor units. Built for homeowners and HVAC professionals alike, this line set features 3 8" liquid and 5 8" suction lines, factory pre charged with R 454B refrigerant, and sealed for leak free performance.

MRCOOL DIY® 5th Gen 25 ft. 3/8" x 5/8" Pre-Charged Quick Connect Line Set (for 24K & 36K Indoor Units)

The MRCOOL DIY® 5th Generation 25 ft. Pre-Charged Quick Connect Line Set is the standard-length refrigerant line set for MRCOOL’s 24K and 36K indoor units. Built for homeowners and HVAC professionals alike, this line set features 3/8" liquid and 5/8" suction lines, factory pre-charged with R-454B refrigerant, and sealed for leak-free performance.

Designed for easy installation with MRCOOL DIY 5th Gen single-zone and multi-zone systems, this 25 ft. line set comes equipped with Quick Connect fittings, making it possible to install without vacuum pumps, gauges, or licensed technicians.

Key Features

  • Length: 25 feet – standard for most DIY mini split installations
  • Line Sizes: 3/8" liquid x 5/8" suction – perfectly sized for 24K & 36K units
  • Refrigerant: Pre-charged with eco-friendly R-454B
  • Connection: Quick Connect fittings – no vacuuming, brazing, or special tools needed
  • Durability: White UV-resistant insulation with robust copper line construction
  • Compatible Systems:
    • MRCOOL DIY® 5th Gen Single-Zone 24K & 36K
    • MRCOOL Multi-Zone Systems: Multi3-18K, Multi4-27K, Multi5-36K, Multi6-48K, Multi6-55K
      (Line set must match the size of each air handler in multi-zone configurations)

Installation Tips

  • This is the default line set length included with most 24K and 36K DIY systems.

  • When extending beyond 25 feet, you'll need a coupler kit and longer control wire (Pro Cable) to complete the connection.

  • Follow MRCOOL torque specs for fittings to ensure a proper seal and warranty compliance.


Shop with confidence at MRCOOL DIY Direct – the nation’s leading source for MRCOOL systems, accessories, and expert support. This 25 ft. line set is the perfect fit for standard installations and upgrades.

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: 34064123492

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 24 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
jeff c
Massapequa, US
★★★★★ 4
Keeps your dog busy
Color: Blue
Good toy to keep your dog busy. Make sure you check it periodically to ensure it stays together.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
O
Verified Purchase
OLINDA QUEZADA 🌸
Belleville, US
★★★★★ 5
dog ball
Color: Blue
This ball is perfect for keeping my dog ​​active and entertained. It's made of strong, durable material, ideal for games of fetch. It doesn't break easily and is light enough for him to carry in his mouth without any problem.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
J
Verified Purchase
john wenner
Alexandria, US
★★★★★ 2
Fun but not for rough play.
Color: Orange
The ball contented our “golden” Jaxson for about 15 minutes. He then thought it was a regular ball and it’s just a little delicate for a big dog. I just wrote it off as a loss. Great idea but should be more durable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
A
Verified Purchase
Ang
Belleville, US
★★★★★ 5
Long lasting charge!
Color: Orange
My 50 pound goldendoodle absolutely loves this ball. It keeps a charge for a long time. It turns off When it’s not being used and we play with it every day.!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
E
Verified Purchase
Emeraldcity
Bozeman, US
★★★★★ 5
Fun toy
Color: Orange
My standard poodle loves this toy. It holds a charge for several hours and is well made
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026

recommand products