SKU: 92744037840

MRCOOL 15 ft. 3/8" x 3/4" No-Vac Pre-Charged Line Set for Central Ducted Hyper Heat 2nd Gen & VersaPro 2nd Gen (R-454B Refrigerant)

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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27

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Description

MRCOOL 15 ft. 3/8" x 3/4" No-Vac Pre-Charged Line Set for Central Ducted Hyper Heat 2nd Gen & VersaPro 2nd Gen (R-454B Refrigerant)MRCOOL 15 ft. No Vac Pre Charged Line Set 3 8" x 3 4" for R 454B Central Ducted Systems Upgrade or complete your compatible MRCOOL central ducted heat pump installation with the MRCOOL 15 ft. No Vac Pre Charged Line Set. This genuine MRCOOL line set is designed for Hyper Heat 2nd Gen and VersaPro 2nd Gen Central Ducted Systems that use R 454B refrigerant. With factory pre charged refrigerant lines and MRCOOL quick connect fittings, this line set helps

MRCOOL 15 ft. No-Vac Pre-Charged Line Set – 3/8" x 3/4" for R-454B Central Ducted Systems

Upgrade or complete your compatible MRCOOL central ducted heat pump installation with the MRCOOL 15 ft. No-Vac Pre-Charged Line Set. This genuine MRCOOL line set is designed for Hyper Heat 2nd Gen and VersaPro 2nd Gen Central Ducted Systems that use R-454B refrigerant. With factory pre-charged refrigerant lines and MRCOOL quick-connect fittings, this line set helps simplify installation without requiring traditional vacuuming.

Important Compatibility Notice

This line set is charged with R-454B refrigerant and is not compatible with R-410A systems. Do not use this line set as a replacement for older MRCOOL systems that require R-410A refrigerant.

Product Highlights

  • 15 ft. pre-charged line set for compatible MRCOOL central ducted heat pump systems
  • 3/8" liquid line x 3/4" suction line
  • Pre-charged with R-454B refrigerant
  • No-vac quick-connect design helps simplify installation
  • Designed for MRCOOL Hyper Heat 2nd Gen and VersaPro 2nd Gen Central Ducted Systems
  • Genuine MRCOOL accessory for proper fitment and reliable performance

Built for MRCOOL R-454B Ducted Heat Pump Systems

This MRCOOL 15 ft. line set is specifically engineered for the latest generation of MRCOOL central ducted systems using R-454B refrigerant. Proper refrigerant compatibility is critical for system performance, efficiency, and reliability, because HVAC equipment is picky like that.

No-Vac Quick Connect Installation

MRCOOL’s no-vac line set technology allows the refrigerant lines to connect securely without the traditional vacuum process required by standard HVAC line sets. This makes installation faster and cleaner while helping reduce the complexity of connecting your compatible MRCOOL ducted system.

Durable Copper Line Set Construction

Built with high-quality copper tubing and durable insulation, this pre-charged line set is made for long-term use in residential HVAC installations. The 3/8" x 3/4" sizing provides proper refrigerant flow for compatible MRCOOL R-454B central ducted heat pump equipment.

Compatible Systems

  • MRCOOL Hyper Heat 2nd Gen Central Ducted Heat Pump Systems using R-454B
  • MRCOOL VersaPro 2nd Gen Central Ducted Heat Pump Systems using R-454B

Not Compatible With

  • MRCOOL R-410A central ducted systems
  • Older MRCOOL systems requiring R-410A refrigerant
  • Non-compatible line set sizes or refrigerant types

Why Buy from MRCOOL DIY Direct?

When you order from MRCOOL DIY Direct, you are purchasing from an authorized MRCOOL dealer that specializes in genuine MRCOOL HVAC equipment, replacement parts, and accessories.

  • Genuine MRCOOL products sourced through authorized channels
  • Knowledgeable support for MRCOOL DIY, ducted, and heat pump systems
  • Fast, reliable shipping on eligible parts and accessories
  • Competitive pricing on official MRCOOL equipment

Order Your MRCOOL 15 ft. R-454B No-Vac Line Set Today

Complete your compatible MRCOOL Hyper Heat 2nd Gen or VersaPro 2nd Gen central ducted installation with the correct 15 ft. R-454B pre-charged no-vac line set. Built for proper fitment, simplified installation, and reliable performance, this genuine MRCOOL accessory is the right choice for compatible R-454B ducted systems.

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: 92744037840

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4.4 ★★★★★
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Product Reviews
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Verified Purchase
Dennis Krawiec
Alexandria, US
★★★★★ 4
GOOD CHOICE FOR A SUPER CHEWER
Size: Large (Pack of 1), Size: Large (Pack of 1)
Pretty good choice, but for a super power chewer like my 2 year old ROTT, nothing can stand up to her ! This bone usually lasts her about 2-3 weeks, but we only let her have it a few hours a day to keep her busy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
K
Verified Purchase
kccop2nd
West Palm Beach, US
★★★★★ 5
Average size but very durable
Size: Medium (Pack of 1)
My dog broke new bones within an hour of opening them. He is a lab so strong chewer. We bought a Kong tug toy months ago….zero rips, tears or knicks at all so when looking for a bone option, Kong is where we went. So far so good after two days. The rubber chewing sound can get annoying but totally worth it to not worry about it breaking and my dog choking on it or hurting him in some way. Safety was a priority and Kong nailed it. I was hoping it would be a bit bigger based on pictures but it fits his mouth just fine. Being rubber, it is a bit heavy and clunky it your dog likes to retrieve like mine, but if you don’t mind the thud, it is not bad to toss. My dog loves it and it’s is holding up so we are both happy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
S
Verified Purchase
Stormy
San Leandro, US
★★★★★ 1
Less than 1
Size: Medium (Pack of 1)
I purchased a Kong Extreme Dog Toy at Tractor Supply and it lasted for several weeks with no signs of damage and then my dog lost it. So I went on the search for more Kong Extreme toys for powerful chewers on Amazon. I have a 60 lb. American Straffordshire Pit and he is a fierce chewer. Most chew toys can make it for a day with some damage but by day 2 the fun is over. For him because the toy is torn to bits and for me because I have to pick up the remnants. I have learned not to get him anything fuzzy - he will rip the fuzz off and I have learned not to get him anything with a squeaker because he will not stop chewing until he finds the squeaker and rip it out. He had the end of the Kong Extreme Goodie Bond Dog Toy off in less than 30 minutes and that was alternating between the Wubba toy for fetching and the bone for chewing, I can tell the Wubba isn't going to last anytime if I let him sit down and chew on it so I had to keep taking it away from him. He likes to catch but he doesn't like to fetch. When I took the bone out of the package I was more worried about the center as it seemed very flimsy and I had doubts it would make it but my dog concentrated on the holes on the ends (with no snacks in them) and when he laid down to chew on it, he was able to rip the end off in a matter of minutes, This is also listed as for power chewers. I have other Kong toys I have ordered for him because he loves to play and chew but I can hardly afford to pay $8 to $10 per toy for him to have half a hour of chewing fun. I went back to TSC for a Kong Extreme Dog Toy and I tried one of the classic Kongs. The classic had one end missing in less than an hour. A Pit Bull breeder said the only thing he has found his dogs can play with and not destroy are bowling balls. He keeps his dogs in kennels and in a barn and my dog is a house dog so since I don't live in a bowling alley I know that I would wind up wishing he would only chew it up instead of roll it into every piece of furniture or a wall. I had such high hopes for the Kong Extreme but it is said to have a dog get attached to a toy then have to take it away from him every ten to fifteen minutes because a power chew toy can't hold up to chewing. Off to find an alternative to Kong,,,,, one toy out of five holding up is not a good recommendation and very expensive to try to find something the dog can enjoy and not destroy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 28, 2014
E
Verified Purchase
Ellen R.
Natrona Heights, US
★★★★★ 5
Safest dog toy .
Size: X Large
It really is the most durable ! My 160lbs mastiff loves it .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
L
Verified Purchase
Lane G.
Phoenix, US
★★★★★ 5
KONG; consistently sturdy!
Color: bone, Size: 1 Count (Pack of 1)
This toy is small enough for my 11 pound puppy and he loves it. It's also sturdy enough (as KONG products always are) to withstand his terrier jaws and ability to destroy most toys in under 5 minutes. Keeps him busy for hours.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 26, 2025

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