SKU: 32708985118

MRCOOL® Pre-Charged Line Set for 2nd Gen Systems (R-454B | DIY Installation)

Sale price$151.65 Regular price$168.50
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Description

MRCOOL® Pre-Charged Line Set for 2nd Gen Systems (R-454B | DIY Installation)MRCOOL No Vac Pre Charged Line Set 3 8" x 3 4" for Universal 2nd Gen, Hyper Heat 2nd Gen, VersaPro 2nd Gen & Cased A Coil Systems Complete your MRCOOL central ducted HVAC installation with the MRCOOL No Vac Pre Charged Line Set, engineered specifically for R 454B refrigerant systems. Designed for compatibility with MRCOOL Universal 2nd Gen, Hyper Heat 2nd Gen, VersaPro 2nd Gen, and Pre Charged Cased A Coil systems, this factory pre charged line set

MRCOOL® No-Vac® Pre-Charged Line Set – 3/8" x 3/4" for Universal® 2nd Gen, Hyper Heat 2nd Gen, VersaPro® 2nd Gen & Cased A-Coil Systems

Complete your MRCOOL® central ducted HVAC installation with the MRCOOL® No-Vac® Pre-Charged Line Set, engineered specifically for R-454B refrigerant systems. Designed for compatibility with MRCOOL® Universal® 2nd Gen, Hyper Heat 2nd Gen, VersaPro® 2nd Gen, and Pre-Charged Cased A-Coil systems, this factory pre-charged line set delivers a faster, cleaner, and easier installation process without the need for vacuum pumps or refrigerant charging.

Featuring MRCOOL’s industry-leading No-Vac® Quick Connect technology, these pre-charged line sets are ideal for both professional HVAC installers and advanced DIY homeowners looking for a reliable and efficient HVAC installation solution.

Available Line Set Lengths

  • 15-Foot No-Vac® Pre-Charged Line Set
  • 25-Foot No-Vac® Pre-Charged Line Set
  • 35-Foot No-Vac® Pre-Charged Line Set
  • 50-Foot No-Vac® Pre-Charged Line Set

Need additional length? MRCOOL® DIY Couplers allow you to safely connect multiple line sets together for custom installation configurations. Because apparently houses refuse to place condensers exactly 15 feet away from air handlers like civilized structures.

Key Features & Benefits

  • Compatible with MRCOOL® 2nd Gen Systems – Designed for use with MRCOOL® Universal® 2nd Gen Heat Pumps, Hyper Heat 2nd Gen systems, VersaPro® 2nd Gen systems, and Pre-Charged Cased A-Coils.
  • Pre-Charged with R-454B Refrigerant – Factory sealed and ready for installation with no additional refrigerant charging required.
  • No-Vac® Quick Connect Technology – Eliminates the need for vacuuming, gauges, or specialty HVAC charging tools during installation.
  • Multiple Length Options Available – Choose from 15', 25', 35', or 50' line sets to fit your installation needs.
  • DIY Extendable Design – Compatible with MRCOOL® DIY Couplers for extended custom-length installations.
  • 3/8" Liquid Line & 3/4" Suction Line – Properly sized for optimized refrigerant flow and maximum system efficiency.
  • Durable Copper Construction – Manufactured with corrosion-resistant copper tubing and premium insulation for long-term reliability.
  • Eco-Friendly Refrigerant Compatibility – Supports R-454B refrigerant, a lower global warming potential (GWP) refrigerant designed to meet modern EPA efficiency standards.

Important Compatibility Notice

For R-454B Systems Only – This line set is specifically engineered for MRCOOL® R-454B refrigerant-based systems including Universal® 2nd Gen, Hyper Heat 2nd Gen, VersaPro® 2nd Gen, and compatible Cased A-Coils.

Not Compatible with R-410A Systems – Do not use with older MRCOOL® systems or any HVAC equipment requiring R-410A refrigerant. Improper refrigerant compatibility may cause system damage and void manufacturer warranty coverage.

Why Choose MRCOOL® No-Vac® Line Sets?

  • 100% genuine MRCOOL® factory-tested product
  • Pre-charged and sealed for simplified installation
  • No vacuuming or refrigerant handling required
  • Ideal for DIY-friendly installations and professional HVAC applications
  • Engineered for reliable performance and leak-resistant operation
  • Designed to work seamlessly with MRCOOL® R-454B systems

Buy from an Authorized MRCOOL® Dealer

When you purchase from MRCOOL HVAC Direct, you are buying from an authorized MRCOOL® dealer committed to providing genuine equipment, knowledgeable support, and dependable service.

  • 100% Genuine MRCOOL® Products – No aftermarket replicas or unauthorized resellers
  • Expert HVAC Support – Assistance with compatibility, installation, and system pairing
  • Fast & Reliable Shipping – Quick order processing and nationwide delivery
  • Competitive Pricing – Exceptional value on genuine MRCOOL® HVAC accessories and equipment

Upgrade Your MRCOOL® System Today

Choose the MRCOOL® No-Vac® Pre-Charged Line Set for a faster, cleaner, and more reliable installation experience. Designed specifically for MRCOOL® Universal® 2nd Gen, Hyper Heat 2nd Gen, VersaPro® 2nd Gen, and compatible Cased A-Coil systems using R-454B refrigerant, this line set helps ensure maximum performance, efficiency, and installation convenience.

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: 32708985118

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Zandisu
Charlottesville, US
★★★★★ 5
Perfect in Eery Way
Color: Black
This monitor stand is worth every penny. I thought it was a bit pricey at first, but the quality is top notch. Made of real wood not pressed board, was easy to assemble and maximized my space. Having the drawers was a bonus to keep small items organized. The height is sufficient to slide books, papers and such underneath. Top shelf is long enough to not only hold dual monitors but also a few decorative items. It’s also just right for a 43” wide desk but not so wide that it eats up your keyboard or writing surface.
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Reviewed in the United States on December 29, 2025
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S. Khan
Charlottesville, US
★★★★★ 5
Great buy
Color: Brown
I am able to put two 27in monitors on it, pretty straight forward assembly, the stand looks quality as well. It has really helped me with the mess on my table, now my table looks kempt and organized.
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Reviewed in the United States on December 13, 2025
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Yinxi
Waukegan, US
★★★★★ 4
Pretty good for the price
Color: Brown
Honestly great quality from what it came in and I love how affordable it is. Though my one complaint is that they don't have rubber tabs underneath the legs so it just slides off pretty easily but other than that being an easy fix it"s not bad assembly was easy and it freed up a lot of room on my desk
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Reviewed in the United States on March 17, 2026
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Vladd
Fort Morgan, US
★★★★★ 5
So impressed with this company! Highly recommend!
Color: Black, Color: Black
Update: Awesome seller, exceptional customer service! Updated pics and rating, 5 Stars all the way! This seller has gone above and beyond to take care of the issue and ensure maximum satisfaction. I simply couldn't be more pleased! I really like this product, the design and quality and especially support. Highly recommend doing business here and supporting this business operation! Original review: Received it today, packaging and everything seemed perfect. Looked over all the pieces and they seemed OK. Took a bit to assemble but not bad. The design and construction are great. It looks awesome for my setup as you can see in pics. Really love this, or at least what it's supposed to be if everything was perfect. However, once assembled, upon closer look, I was just so disappointed. I just couldn't believe it. The bottom shelf on the left side is pretty messed up (refer to pics). Also on the right side but not quite as noticeable. Not sure what to do here, I don't think I can deal with this especially at the $100 price point. If it was in the back, I wouldn't care too much. But of course it's right in the very front just staring at me lol... I'm pretty bummed out, probably returning this unfortunately.
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Reviewed in the United States on July 30, 2025
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Ellen Buechler
Los Angeles, US
★★★★★ 5
Looking good!!
Color: White1
Easily put together and perfect got my new home office. Good quality and even all the drill holes lined up. Looks great!
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Reviewed in the United States on February 9, 2026

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