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MRCOOL® 3/8" x 3/4" No-Vac Coupler Set – For Connecting NV Pre-Charged Line Sets for Central Ducted HyperHeat, Universal Split system & VersaPro Systems (Gen 1 & Gen 2, R-410A / R-454B

MRCOOL® 3/8" x 3/4" No-Vac Coupler Set – For Connecting NV Pre-Charged Line Sets for Central Ducted HyperHeat, Universal Split system & VersaPro Systems (Gen 1 & Gen 2, R-410A / R-454B

Product Description 

Model NVCOUPLER3834

These are only for our Central ducted, Universal Series or VersaPro Central Ducted. This will not work on any other series. DIY 4th Generation and other mini-split systems will not work with this. Please contact us if you need assistance determining the correct items you need if you are unsure. 

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 HyperHeatand 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 finishfor 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

Whats Included 

set

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, Universal Split System 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.

 

$22.40

Original: $64.00

-65%
MRCOOL® 3/8" x 3/4" No-Vac Coupler Set – For Connecting NV Pre-Charged Line Sets for Central Ducted HyperHeat, Universal Split system & VersaPro Systems (Gen 1 & Gen 2, R-410A / R-454B—

$64.00

$22.40
Product image 1
Product image 2

Description

Product Description 

Model NVCOUPLER3834

These are only for our Central ducted, Universal Series or VersaPro Central Ducted. This will not work on any other series. DIY 4th Generation and other mini-split systems will not work with this. Please contact us if you need assistance determining the correct items you need if you are unsure. 

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 HyperHeatand 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 finishfor 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

Whats Included 

set

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, Universal Split System 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.