MRCOOL 3/8" x 3/4" No-Vac Coupler Set – Connect Pre-Charged Line Sets for Central Ducted HyperHeat & VersaPro Systems (Gen 1 & Gen 2, R-410A / R-454B)
SKU: 29349108104

MRCOOL 3/8" x 3/4" No-Vac Coupler Set – Connect Pre-Charged Line Sets for Central Ducted HyperHeat & VersaPro Systems (Gen 1 & Gen 2, R-410A / R-454B)

$143.10 $159.00
Save 10%
No.2 Bestseller on shemperlaw.com >

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

MRCOOL 3/8" x 3/4" No-Vac Coupler Set – Connect Pre-Charged Line Sets for Central Ducted HyperHeat & VersaPro Systems (Gen 1 & Gen 2, R-410A / R-454B)Upgrade your MRCOOL installation with the MRCOOL No Vac Coupler Set (Model NVCOUPLER 3834), designed specifically for connecting two pre charged line sets with ease and reliability. This coupler set includes a 3 8" liquid line coupler and a 3 4" suction line coupler, making it the perfect solution for extending your line set length without losing refrigerant integrity. Perfect Fit for MRCOOL Central Ducted Systems Works exclusively with Central Ducted

Upgrade your MRCOOL installation with the MRCOOL No-Vac Coupler Set (Model NVCOUPLER-3834), designed specifically for connecting two pre-charged line sets with ease and reliability. This coupler set includes a 3/8" liquid line coupler and a 3/4" suction line coupler, making it the perfect solution for extending your line set length without losing refrigerant integrity.

✅ Perfect Fit for MRCOOL Central Ducted Systems – Works exclusively with Central Ducted HyperHeat and Central Ducted VersaPro™ systems (Gen 1 & Gen 2).
✅ Compatible with R-410A and R-454B Refrigerant – Whether you’re installing a legacy R-410A system or the new eco-friendly R-454B refrigerant models, this coupler set ensures secure performance.
✅ No Vacuum Pump Required – Engineered with MRCOOL’s patented No-Vac technology, these couplers maintain a factory-sealed, pre-charged connection, eliminating the need for specialized tools.
✅ Durable Copper Construction – Built from high-quality copper with a bronze/copper metallic finish for long-lasting strength and corrosion resistance.
✅ Quick, Leak-Free Installation – Double male end coupling ensures a tight seal and straightforward setup for DIYers and HVAC professionals.

Specifications:

  • Sku: NVCOUPLER-3834

  • Sizes: 3/8" (liquid line) + 3/4" (suction line)

  • Dimensions: 6"W x 4.5"D x 2"H

  • Weight: 6 lbs

  • Fitting Type: Double male end coupling

  • Color Family: Bronze/Copper Metallic

  • Restricted States: GU, PR, VI

  • Proposition 65 Warning: Yes

Why Choose This Coupler Set?

When you need to extend your MRCOOL pre-charged line set, the NVCOUPLER-3834 provides the only factory-approved solution for Central Ducted HyperHeat and VersaPro™ systems. With support for both refrigerant generations (R-410A & R-454B), you’re covered for today’s installs and future upgrades.

Perfect for:

  • Homeowners expanding HVAC installations

  • Contractors extending line set runs

  • DIY projects requiring flexible line length solutions

👉 Order your MRCOOL 3/8" x 3/4" No-Vac Coupler Set today and get the confidence of a leak-free, factory-sealed extension for your Central Ducted HyperHeat or VersaPro™ system.

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: 29349108104

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 792 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Amazon Customer
Boise, US
★★★★★ 5
Great for aggressive chewers - Great for clean teeth
I never thought these would stand up to my 60lb pittie puppy's chewing. But they are far and away her favorite toy and are holding up beautifully. One squeaker insert bit the dust -- which is not bad since it gives us one silent one. But otherwise they are holding up superbly to her powerful jaws. We have tried a lot of toys. So far, all the "for aggressive chewers" toys have been torn apart within days if we are lucky -- usually it's minutes. But these balls show little-to-no sign of wear. The squeakers are very loud which she loves can get a bit tiresome. So, as I mentioned, having one silent one is a great option. And she really likes the texture. She loves them so much, we bought a second set and will probably buy a third to have in reserve. (We are realistic and don't expect them to last forever.) All I have to say is "where's spiky ball" and she instantly stops what she is doing and goes on the hunt. A great buy!! (NOTE: It's been almost three months and one is just beginning to show some damage. Given that she plays with them non-stop, they've showed amazing durability. And everyone comments on how clean and beautiful her teeth are. I don't brush them or give her dental treats. So it has to be these balls!!)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 23, 2025
A
Verified Purchase
amanda bragg
Fort Morgan, US
★★★★★ 5
Good sturdy ball for aggressive chewer
Size: 4.5"
Nice heavy duty ball that my 7 yr old pitbull can chew on and not destroy it in 2 minutes. Wish that could get 3 for the cost but whatever. Nice bright colors . Good size that he won't choke on it .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
E
Verified Purchase
Edward Davidson
Waukegan, US
★★★★★ 4
Great ball but poor squeaked design
Size: 4.5"
My Rottie loves these balls. The ball lasts a long time even though he plays hard and chews them. My biggest complaint is the squeaker disconnects easily from inside the ball, the glue does not hold! We have bought many of these balls because eventually the area where the squeaker is attached comes away from the ball leaving an open whole that causes the ball to eventually developed a long crack at which point it no longer is able to be thrown nor is is fun for him any longer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2025
A
Verified Purchase
A. Estrella
San Leandro, US
★★★★★ 5
Well made and great fun for our Pittie
Size: 4.5"
My pittie loves these! They are way thicker than others. He has learned how to chew on the spikes. Seems like a good teeth cleaning too. Yes, the squeaker breaks! That is a great thing!! With his active chewing, that sound was driving us crazy after a while.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
D
Verified Purchase
Donald
Whiting, US
★★★★★ 5
"Durable Fun: Pweituoet Heavy Duty Squeaky Dog Balls for Aggressive Chewers"
Size: 4.5"
Product Review: The Pweituoet 4.5” Heavy Duty Squeaky Dog Balls have been a hit with my dog, proving to be both durable and entertaining. Durability: These dog balls are impressively tough. My dog is an aggressive chewer, and most toys don’t last long, but these balls have held up exceptionally well. The heavy-duty material and spiked design are perfect for dogs who love to chew, providing both durability and safety. Entertainment: The built-in squeaker adds an extra layer of fun. It captures my dog’s attention immediately, and the squeak keeps him engaged for longer play sessions. The spikes also make the ball easy for him to grip and carry around. Size: The 4.5” size is ideal for medium to large dogs. It’s large enough to avoid being a choking hazard but still easy for my dog to pick up and play with. The size and weight are just right for games of fetch, too. Value: Given the durability and how much my dog enjoys these balls, they offer great value for the price. They’ve lasted much longer than other toys we’ve tried, making them a worthwhile investment for any dog owner with a tough chewer. Overall Verdict: The Pweituoet Heavy Duty Squeaky Dog Balls are an excellent choice for medium to large dogs, especially those who are aggressive chewers. They’re durable, fun, and well-sized, making them a great addition to your dog’s toy collection. Highly recommended!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 10, 2024

recommand products

Sterling Silver Fancy Link Bracelet
34.68
Porterfield Brake Pads for 2006 INFINITI Q45
124.95
Sterling Silver Rhodium-plated MOP & CZ w/.5in ext Bracelet
23.56
Sterling Silver Blue Topaz Diamond-cut Bracelet
69.28
Porterfield Brake Pads for 2009 MERCEDES-BENZ S65 AMG - w/Iron Discs
124.97