Skip to content

MRCOOL 50 Ft. R-454B No-Vac Lineset (NV50-3834-O)

BY: MRCOOL | SKU: NV50-3834-O Availability: In Stock
Original Price $749.00
Current Price $722.00
You Save: $27.00

Notify me when back in stock

Found a Better Price?

Share it with us now and we will beat it. Get the best deal online - Guaranteed!

  • Authorized MRCOOL Dealer

    Full manufacturer warranty included

  • Free Shipping + No Sales Tax (Most States)

    More savings on every purchase

  • Easy 30-Day Returns & Price Beat Guarantee

    Risk-free shopping + best price guaranteed

  • Lifetime Expert Support

    Dedicated help whenever you need it

Estimated Delivery Between

and .

Order within to get it by the earliest date.

The MRCOOL 50 Ft. R-454B No-Vac Lineset (NV50-3834-O) offers a simplified and efficient solution for connecting HVAC systems without the need for vacuuming or charging. Designed specifically for use with MRCOOL Hyper Heat and VersaPro® systems, this pre-charged lineset ensures a clean and easy installation. It includes a 3/8" liquid line and a 3/4" suction line that are pre-charged with environmentally friendly R-454B refrigerant.

MRCOOL 50 Ft. R-454B No-Vac Lineset Features

Pre-Charged Convenience – Arrives factory-charged with R-454B refrigerant, eliminating the need for on-site charging.

Quick Installation – No vacuum or nitrogen purge needed; reduces labor time and complexity.

Compatibility – Designed for use with MRCOOL Hyper Heat and VersaPro® 2nd Gen systems.

Reliable Sealing – Factory-sealed connectors reduce leak potential and ensure long-term system performance.

Corrosion Resistant – Durable materials ensure longevity and resistance to environmental damage.

MRCOOL 50 Ft. R-454B No-Vac Lineset Applications

  • Simplified Installation – Ideal for DIY and professional HVAC installations without specialized tools.

  • MRCOOL Compatibility – Tailored for Hyper Heat and VersaPro® systems.

  • Time-Saving Solution – Cuts down on setup time by eliminating the charging step.

  • Environmentally Friendly – Uses R-454B refrigerant with lower global warming potential.

What’s Included?

  • MRCOOL 50 Ft. R-454B No-Vac Lineset (NV50-3834-O)

  • User Manual

MRCOOL 50 Ft. R-454B No-Vac Lineset Specifications

Product Specifications

Dimensions 47" D x 47" H x 5" W
Refrigerant Type R-454B
Refrigerant Volume (OZ) 17.19
Line Set Length 49.2 ft
Lineset Fitting Type Quick-Connect
Liquid Line Size 3/8"
Suction Line Size 3/4"
Contains Chemicals Yes
Net Weight (lbs) 45
Gross Weight (lbs) 54

Frequently-Asked Questions

Do I need to vacuum this lineset before use?
No. This lineset is pre-charged and factory-sealed, so vacuuming is not necessary.

Is it compatible with other brands besides MRCOOL?
This lineset is specifically designed for MRCOOL systems and may not be compatible with other manufacturers’ units.

Can it be reused on another system?
Reusing No-Vac linesets is not recommended, as the refrigerant charge may not be adequate after disconnection.