Affordable HVAC Equipment & Authorized MRCOOL Dealer in Corpus Christi -Reliable comfort solutions, honest pricing, and expert local support for every home in South Texas.

Upgrade your home’s comfort with high‑quality HVAC systems, MRCOOL Universal Series units, heat kits, and DIY‑friendly mini‑splits. Your Bargain Mart delivers trusted products, fast local service, and real value backed by South Texas expertise.

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Your Bargain Mart Authorized MRCOOL Dealer
Authorized MRCOOL Dealer | Corpus Christi TX | Your Bargain Mart
Corpus Christi’s Trusted MRCOOL Dealer for HVAC Equipment.

MRCOOL DIY 5th Generation R454b Linesets

Check out the MRCOOL DIY 5th Generation R454b Linesets with R454b refrigerant! These are perfect for anyone looking to keep things cool while being kind to the planet. They make installation a breeze, so you can easily upgrade your home’s comfort without any hassle. Why go for the usual when you can have something that’s super efficient and easy to set up?

Showing all 15 resultsSorted by price: low to high

  • MRCOOL DIY 16ft 1/4 x 1/2 R‑454B Quick‑Connect Lineset for 9K, 12K & 18K Indoor Units

    MRCOOL DIY 16ft 1/4 x 1/2 R‑454B Quick‑Connect Lineset for 9K, 12K & 18K Indoor Units

    $225.00     Add to cart Quick View
  • MRCOOL DIY 16ft 1/4 x 3/8 R‑454B Quick‑Connect Lineset for 6K, 9K & 12K Indoor Units

    MRCOOL DIY 16ft 1/4 x 3/8 R‑454B Quick‑Connect Lineset for 6K, 9K & 12K Indoor Units

    $240.00     Add to cart Quick View
  • MRCOOL DIY 25ft 1/4 x 1/2 R‑454B Quick‑Connect Lineset for 9K, 12K & 18K Indoor Units

    MRCOOL DIY 25ft 1/4 x 1/2 R‑454B Quick‑Connect Lineset for 9K, 12K & 18K Indoor Units

    $264.00     Add to cart Quick View
  • MRCOOL DIY 16ft 3/8 x 5/8 R‑454B Quick‑Connect Lineset for 24K & 36K Indoor Units

    MRCOOL DIY 16ft 3/8 x 5/8 R‑454B Quick‑Connect Lineset for 24K & 36K Indoor Units

    $271.00     Add to cart Quick View
  • MRCOOL DIY 25ft 1/4 x 3/8 R‑454B Quick‑Connect Lineset w/ DIY Pro Cable for 6K, 9K & 12K Indoor Units

    MRCOOL DIY 25ft 1/4 x 3/8 R‑454B Quick‑Connect Lineset w/ DIY Pro Cable for 6K, 9K & 12K Indoor Units

    $271.00     Add to cart Quick View
  • MRCOOL DIY 25ft 1/4 x 3/8 R‑454B Quick‑Connect Lineset for 6K, 9K & 12K Indoor Units

    MRCOOL DIY 25ft 1/4 x 3/8 R‑454B Quick‑Connect Lineset for 6K, 9K & 12K Indoor Units

    $272.00     Add to cart Quick View
  • 25ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor w/ DIY Pro Cable – R454B

    25ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor w/ DIY Pro Cable – R454B

    $409.00     Add to cart Quick View
  • 25ft 3/8 x 5/8 Lineset for DIY 24K & 36K Indoor – R454B

    25ft 3/8 x 5/8 Lineset for DIY 24K & 36K Indoor – R454B

    $440.00     Add to cart Quick View
  • 35ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable - R454B

    35ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable – R454B

    $492.00     Add to cart Quick View
  • 35ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor w/ DIY Pro Cable – R454B

    35ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor w/ DIY Pro Cable – R454B

    $500.00     Add to cart Quick View
  • 35ft 3/8 x 5/8 Lineset for DIY 24K & 36K Indoor w/ DIY Pro Cable – R454B

    35ft 3/8 x 5/8 Lineset for DIY 24K & 36K Indoor w/ DIY Pro Cable – R454B

    $565.00     Add to cart Quick View
  • 50ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor w/ DIY Pro Cable – R454B

    50ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor w/ DIY Pro Cable – R454B

    $587.00     Add to cart Quick View
  • 50ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable – R454B

    50ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable – R454B

    $599.00     Add to cart Quick View
  • 25ft 3/8 x 5/8 Lineset for DIY 24K & 36K Indoor w/ DIY Pro Cable – R454B

    25ft 3/8 x 5/8 Lineset for DIY 24K & 36K Indoor w/ DIY Pro Cable – R454B

    $640.00     Add to cart Quick View
  • 50ft 3/8 x 5/8 Lineset for DIY 24K & 36K Indoor w/ DIY Pro Cable – R454B

    50ft 3/8 x 5/8 Lineset for DIY 24K & 36K Indoor w/ DIY Pro Cable – R454B

    $662.00     Add to cart Quick View

Recent Posts

  • VersaPro vs. Hyper Heat: Which MRCOOL System Is Right for Your Home?
  • AC Installation in Corpus Christi, TX — Your Guide to Staying Cool, Saving Money, and Choosing the Right System

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  • VersaPro vs. Hyper Heat: Which MRCOOL System Is Right for Your Home?
  • AC Installation in Corpus Christi, TX — Your Guide to Staying Cool, Saving Money, and Choosing the Right System

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