About Us Contact Us Shipping Easy Returns Privacy Terms of Service Happy Customers Solar System Size Calculator
Skip to content
MRCOOL 35 Ft. R-454B No-Vac Lineset (NV35-3834-O) Central Split System Accessories MRCOOL

MRCOOL 35 Ft. R-454B No-Vac Lineset (NV35-3834-O) | (Pre-Order: No ETA)

BY: MRCOOL | SKU: NV35-3834-O | Availability: Limited Stock
$569.00
$550.00
Sold out

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!

Call/Text Us: 877-556-3347
Live Chat With an Expert

  • 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 35 Ft. R-454B No-Vac Lineset is designed to make HVAC installations quicker, easier, and more reliable. Pre-charged with environmentally friendly R-454B refrigerant, this lineset eliminates the need for field vacuuming, brazing, or charging. It’s factory-sealed to maintain refrigerant purity and reduce installation time and potential errors. Compatible with select MRCOOL systems, it delivers professional results with minimal tools and training.

MRCOOL 35 Ft. R-454B No-Vac Lineset Features

Pre-Charged Convenience – Comes pre-charged with R-454B refrigerant, eliminating the need for vacuuming or charging.

Tool-Free Installation – No brazing or vacuum pump required, saving time and reducing installation risks.

Leak-Proof Seal – Factory-sealed connections help ensure a consistent and safe refrigerant flow.

35 Ft Length – Provides extended reach, ideal for split installations requiring longer line routing.

High Compatibility – Designed to integrate seamlessly with MRCOOL central ducted and ductless units using R-454B.

MRCOOL 35 Ft. R-454B No-Vac Lineset Applications

  • Residential HVAC – Reliable refrigerant connection for MRCOOL home systems.

  • Retrofit Projects – Simplifies replacing older refrigerant lines with eco-friendly R-454B linesets.

  • Remote Indoor Unit Locations – Ideal for extended-distance indoor unit placements.

  • Fast Install Jobs – Best suited for quick and efficient system installs.

What’s Included?

  • MRCOOL 35 Ft. R-454B No-Vac Lineset (NV35-3834-O)

  • User Manual

MRCOOL 35 Ft. R-454B No-Vac Lineset Specifications

Dimensions 41" D x 41" H x 5" W
Refrigerant Type R-454B
Refrigerant Volume (Oz) 5.73
Line Set Length 35 ft
Lineset Fitting Type Quick-Connect
Liquid Line Size 3/8"
Suction Line Size 3/4"
Contains Chemicals Yes
Net Weight (lbs) 32
Gross Weight (lbs) 37

Frequently-Asked Questions

Is this lineset compatible with older MRCOOL units?
This lineset is compatible only with MRCOOL systems that use R-454B refrigerant. Verify your unit’s compatibility before purchase.

Can I use this lineset with a non-MRCOOL system?
No. The lineset is engineered for MRCOOL's R-454B-specific units and may not work correctly with other brands or refrigerants.

Do I need professional tools to install this lineset?
No. The No-Vac design removes the need for vacuum pumps or brazing, allowing for a quicker, easier installation.