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NEW R-454B Refrigerant

MRCOOL 25 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 25 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)

Regular price $393.72 USD
Regular price $483.99 USD Sale price $393.72 USD
Save $90.27 Sold out
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SKUNV25-3834-O

TypeCentral Ducted Pre-Charged Line Set

Refrigerant Type: R-454B

✅ This item is in stock!

More than 30 available

Estimated Delivery: November 24 – November 26

Based on order date & typical delivery times.
• Orders Typically ship within 2 business days

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PRODUCT DESCRIPTION

MRCOOL 25 ft. No-Vac Pre-Charged Line Set – 3/8" x 3/4" | Designed for Central Ducted Hyper Heat 2nd Gen & VersaPro 2nd Gen (R-454B Refrigerant)

Upgrade your HVAC system with the MRCOOL 25 ft. No-Vac Pre-Charged Line Set, engineered for seamless, hassle-free installation. Specifically designed for MRCOOL Central Ducted Hyper Heat 2nd Gen and VersaPro 2nd Gen systems, this line set is pre-charged with R-454B refrigerant, eliminating the need for vacuuming, refrigerant handling, or specialized HVAC tools. Whether you're a DIY installer or an HVAC professional, this No-Vac line set ensures a quick, secure, and leak-proof installation with MRCOOL’s patented quick-connect fittings.

Key Features & Benefits:

Pre-Charged with R-454B Refrigerant – No need for vacuum pumps or refrigerant charging, making installation simple and efficient.
25-Foot Length – Provides flexibility for standard HVAC installations, allowing for optimal system placement.
3/8" Liquid Line & 3/4" Suction Line – Engineered for maximum refrigerant flow and efficiency, ensuring peak performance for your MRCOOL system.
No-Vac® Quick Connect Technology – Factory-sealed, leak-proof connections allow for a fast, tool-free installation with no risk of refrigerant contamination.
Durable, Weather-Resistant Construction – Designed to withstand extreme temperatures and environmental conditions, ensuring long-lasting performance.
Optimized for Energy Efficiency – Works seamlessly with MRCOOL's latest high-efficiency systems, delivering reliable heating and cooling while supporting environmental sustainability.

Important Compatibility Notice:

This No-Vac Pre-Charged Line Set is exclusively designed for MRCOOL systems that use R-454B refrigerant (Hyper Heat 2nd Gen & VersaPro 2nd Gen).
🚫 It is NOT compatible with older MRCOOL models or any system using R-410A refrigerant. Attempting to use this line set with an incompatible unit may cause operational issues and void manufacturer warranties.

Buy from the USA’s Most Trusted MRCOOL Dealer

When you purchase from MRCOOL HVAC Direct, you’re buying from the nation’s most trusted and authorized MRCOOL dealer. We provide:

🔹 100% Genuine MRCOOL Products – No third-party resellers or counterfeit parts.
🔹 Expert Customer Support – Our HVAC specialists are ready to assist with compatibility and installation questions.
🔹 Fast & Reliable Shipping – Get your order quickly and securely.
🔹 Competitive Pricing – The best value on official MRCOOL equipment and accessories.

🔥 Upgrade your HVAC system today with the MRCOOL 25 ft. No-Vac Pre-Charged Line Set – the easiest way to install a high-performance MRCOOL system with confidence!

Rated 4.7 / 5 Stars
4700+ Verified Reviews

Comfort That Speaks for Itself

See why homeowners and pros alike trust MRCOOL DIY systems to deliver comfort, savings, and easy installation.

Installed a 3-zone MRCOOL DIY in our ranch house — took a weekend and some planning, but it went smoother than expected.

Ryan G., Oklahoma

We upgraded to the MRCOOL Universal central ducted system last year. It’s quieter, more efficient, and runs smoother than our old 4-ton unit. Love that I installed it myself

James H., Alabama

HVAC quotes were outrageous. The MRCOOL Universal let me handle the install myself and saved me about $3,000. It’s been running flawlessly for eight months.

Eric T., Colorado

The Universal outdoor unit is much smaller than my old condenser but somehow does a better job heating and cooling our 2,000-sq-ft home. Couldn’t be happier

Paul F., Virginia

We live in Minnesota, and the MRCOOL Universal kept our home cozy even during sub-zero nights — that heat pump is a beast.

Amanda P., Minnesota

Replaced our outdated 3-ton system with a MRCOOL central ducted heat pump. Took a few evenings after work, but once powered up, it cooled our entire home faster and quieter than expected.

Thomas W., South Carolina

Installed a 3-zone MRCOOL DIY in our ranch house — took a weekend and some planning, but it went smoother than expected.

Ryan G., Oklahoma

We upgraded to the MRCOOL Universal central ducted system last year. It’s quieter, more efficient, and runs smoother than our old 4-ton unit. Love that I installed it myself

James H., Alabama

HVAC quotes were outrageous. The MRCOOL Universal let me handle the install myself and saved me about $3,000. It’s been running flawlessly for eight months.

Eric T., Colorado

The Universal outdoor unit is much smaller than my old condenser but somehow does a better job heating and cooling our 2,000-sq-ft home. Couldn’t be happier

Paul F., Virginia

We live in Minnesota, and the MRCOOL Universal kept our home cozy even during sub-zero nights — that heat pump is a beast.

Amanda P., Minnesota

Replaced our outdated 3-ton system with a MRCOOL central ducted heat pump. Took a few evenings after work, but once powered up, it cooled our entire home faster and quieter than expected.

Thomas W., South Carolina

Installed a 3-zone MRCOOL DIY in our ranch house — took a weekend and some planning, but it went smoother than expected.

Ryan G., Oklahoma

We upgraded to the MRCOOL Universal central ducted system last year. It’s quieter, more efficient, and runs smoother than our old 4-ton unit. Love that I installed it myself

James H., Alabama

HVAC quotes were outrageous. The MRCOOL Universal let me handle the install myself and saved me about $3,000. It’s been running flawlessly for eight months.

Eric T., Colorado

The Universal outdoor unit is much smaller than my old condenser but somehow does a better job heating and cooling our 2,000-sq-ft home. Couldn’t be happier

Paul F., Virginia

We live in Minnesota, and the MRCOOL Universal kept our home cozy even during sub-zero nights — that heat pump is a beast.

Amanda P., Minnesota

Replaced our outdated 3-ton system with a MRCOOL central ducted heat pump. Took a few evenings after work, but once powered up, it cooled our entire home faster and quieter than expected.

Thomas W., South Carolina

Installed a 3-zone MRCOOL DIY in our ranch house — took a weekend and some planning, but it went smoother than expected.

Ryan G., Oklahoma

We upgraded to the MRCOOL Universal central ducted system last year. It’s quieter, more efficient, and runs smoother than our old 4-ton unit. Love that I installed it myself

James H., Alabama

HVAC quotes were outrageous. The MRCOOL Universal let me handle the install myself and saved me about $3,000. It’s been running flawlessly for eight months.

Eric T., Colorado

The Universal outdoor unit is much smaller than my old condenser but somehow does a better job heating and cooling our 2,000-sq-ft home. Couldn’t be happier

Paul F., Virginia

We live in Minnesota, and the MRCOOL Universal kept our home cozy even during sub-zero nights — that heat pump is a beast.

Amanda P., Minnesota

Replaced our outdated 3-ton system with a MRCOOL central ducted heat pump. Took a few evenings after work, but once powered up, it cooled our entire home faster and quieter than expected.

Thomas W., South Carolina

Installed a 3-zone MRCOOL DIY in our ranch house — took a weekend and some planning, but it went smoother than expected.

Ryan G., Oklahoma

We upgraded to the MRCOOL Universal central ducted system last year. It’s quieter, more efficient, and runs smoother than our old 4-ton unit. Love that I installed it myself

James H., Alabama

HVAC quotes were outrageous. The MRCOOL Universal let me handle the install myself and saved me about $3,000. It’s been running flawlessly for eight months.

Eric T., Colorado

The Universal outdoor unit is much smaller than my old condenser but somehow does a better job heating and cooling our 2,000-sq-ft home. Couldn’t be happier

Paul F., Virginia

We live in Minnesota, and the MRCOOL Universal kept our home cozy even during sub-zero nights — that heat pump is a beast.

Amanda P., Minnesota

Replaced our outdated 3-ton system with a MRCOOL central ducted heat pump. Took a few evenings after work, but once powered up, it cooled our entire home faster and quieter than expected.

Thomas W., South Carolina

Installed a 3-zone MRCOOL DIY in our ranch house — took a weekend and some planning, but it went smoother than expected.

Ryan G., Oklahoma

We upgraded to the MRCOOL Universal central ducted system last year. It’s quieter, more efficient, and runs smoother than our old 4-ton unit. Love that I installed it myself

James H., Alabama

HVAC quotes were outrageous. The MRCOOL Universal let me handle the install myself and saved me about $3,000. It’s been running flawlessly for eight months.

Eric T., Colorado

The Universal outdoor unit is much smaller than my old condenser but somehow does a better job heating and cooling our 2,000-sq-ft home. Couldn’t be happier

Paul F., Virginia

We live in Minnesota, and the MRCOOL Universal kept our home cozy even during sub-zero nights — that heat pump is a beast.

Amanda P., Minnesota

Replaced our outdated 3-ton system with a MRCOOL central ducted heat pump. Took a few evenings after work, but once powered up, it cooled our entire home faster and quieter than expected.

Thomas W., South Carolina

Installed a 3-zone MRCOOL DIY in our ranch house — took a weekend and some planning, but it went smoother than expected.

Ryan G., Oklahoma

We upgraded to the MRCOOL Universal central ducted system last year. It’s quieter, more efficient, and runs smoother than our old 4-ton unit. Love that I installed it myself

James H., Alabama

HVAC quotes were outrageous. The MRCOOL Universal let me handle the install myself and saved me about $3,000. It’s been running flawlessly for eight months.

Eric T., Colorado

The Universal outdoor unit is much smaller than my old condenser but somehow does a better job heating and cooling our 2,000-sq-ft home. Couldn’t be happier

Paul F., Virginia

We live in Minnesota, and the MRCOOL Universal kept our home cozy even during sub-zero nights — that heat pump is a beast.

Amanda P., Minnesota

Replaced our outdated 3-ton system with a MRCOOL central ducted heat pump. Took a few evenings after work, but once powered up, it cooled our entire home faster and quieter than expected.

Thomas W., South Carolina

Installed a 3-zone MRCOOL DIY in our ranch house — took a weekend and some planning, but it went smoother than expected.

Ryan G., Oklahoma

We upgraded to the MRCOOL Universal central ducted system last year. It’s quieter, more efficient, and runs smoother than our old 4-ton unit. Love that I installed it myself

James H., Alabama

HVAC quotes were outrageous. The MRCOOL Universal let me handle the install myself and saved me about $3,000. It’s been running flawlessly for eight months.

Eric T., Colorado

The Universal outdoor unit is much smaller than my old condenser but somehow does a better job heating and cooling our 2,000-sq-ft home. Couldn’t be happier

Paul F., Virginia

We live in Minnesota, and the MRCOOL Universal kept our home cozy even during sub-zero nights — that heat pump is a beast.

Amanda P., Minnesota

Replaced our outdated 3-ton system with a MRCOOL central ducted heat pump. Took a few evenings after work, but once powered up, it cooled our entire home faster and quieter than expected.

Thomas W., South Carolina

Installed a 3-zone MRCOOL DIY in our ranch house — took a weekend and some planning, but it went smoother than expected.

Ryan G., Oklahoma

We upgraded to the MRCOOL Universal central ducted system last year. It’s quieter, more efficient, and runs smoother than our old 4-ton unit. Love that I installed it myself

James H., Alabama

HVAC quotes were outrageous. The MRCOOL Universal let me handle the install myself and saved me about $3,000. It’s been running flawlessly for eight months.

Eric T., Colorado

The Universal outdoor unit is much smaller than my old condenser but somehow does a better job heating and cooling our 2,000-sq-ft home. Couldn’t be happier

Paul F., Virginia

We live in Minnesota, and the MRCOOL Universal kept our home cozy even during sub-zero nights — that heat pump is a beast.

Amanda P., Minnesota

Replaced our outdated 3-ton system with a MRCOOL central ducted heat pump. Took a few evenings after work, but once powered up, it cooled our entire home faster and quieter than expected.

Thomas W., South Carolina

Installed a 3-zone MRCOOL DIY in our ranch house — took a weekend and some planning, but it went smoother than expected.

Ryan G., Oklahoma

We upgraded to the MRCOOL Universal central ducted system last year. It’s quieter, more efficient, and runs smoother than our old 4-ton unit. Love that I installed it myself

James H., Alabama

HVAC quotes were outrageous. The MRCOOL Universal let me handle the install myself and saved me about $3,000. It’s been running flawlessly for eight months.

Eric T., Colorado

The Universal outdoor unit is much smaller than my old condenser but somehow does a better job heating and cooling our 2,000-sq-ft home. Couldn’t be happier

Paul F., Virginia

We live in Minnesota, and the MRCOOL Universal kept our home cozy even during sub-zero nights — that heat pump is a beast.

Amanda P., Minnesota

Replaced our outdated 3-ton system with a MRCOOL central ducted heat pump. Took a few evenings after work, but once powered up, it cooled our entire home faster and quieter than expected.

Thomas W., South Carolina