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 Excellent 4.9 | 18,452 reviews

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

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

Regular price $541.99
Regular price $541.99 Sale price $722.00
SAVE 24% Sold out
MRCOOL 50 Ft. R-454B No-Vac Lineset  - NV50-3834-O

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

Regular price $541.99
Regular price $541.99 Sale price $722.00
SAVE 24% Sold out

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

50' R-454B No-Vac Lineset

Features
  • Kink Resistant - Precharged
  • Simple Secure Quick Connect
  • UV Protected Insulation
  • Works With: VersaPro Gen 2 - Central Hyper Heat Gen 2aVersaPro 2nd Gen - Central Ducted Hyper Heat 2nd Gen
Specifications

Dimensions

47" D x 47" H x 5" W

Refrigerant Type

R-454B

Refrigerant Volume (OZ)

17.19

Line Set Length

49.2ft

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
What our Experts Think
  • Pre-Charged Convenience: Comes factory-charged with R-454B refrigerant, eliminating the need for on-site charging.

  • Time-Saving Installation: No-Vac design reduces setup time and simplifies installation for HVAC professionals and DIY users.

  • Extended Reach: 50 ft. length is ideal for flexible placement of condensers and air handlers.

  • Durable Build: Constructed for long-lasting performance and leak prevention.

  • Perfect Match: Designed to work seamlessly with MRCOOL Hyper Heat and central HVAC systems using R-454B refrigerant.

  • Trusted Innovation: MRCOOL leads the market in DIY-friendly HVAC solutions with professional-grade reliability.

Q&A

Q: What is the MRCOOL NV50-3834-O Lineset?
A: A 50 ft. pre-charged R-454B No-Vac lineset designed for MRCOOL central heat pump systems.

Q: What makes it No-Vac?
A: It comes factory pre-charged with refrigerant, so no vacuum pump or special tools are required.

Q: What sizes does it fit?
A: Compatible with 3/8" liquid line and 3/4" suction line connections.

Q: What are the benefits?
A: Simplifies installation, reduces setup time, and ensures a reliable refrigerant charge.

Q: Where is it best used?
A: Ideal for connecting MRCOOL Hyper Heat 2nd Gen central systems requiring a 50 ft. lineset.

Maintenance Tips
  • Inspect connections regularly for secure fit and leaks.

  • Check insulation along the entire length for wear, cracks, or damage.

  • Keep lineset free of sharp bends or kinks to maintain refrigerant flow.

  • Protect from direct sunlight and extreme weather exposure when possible.

  • Clean exterior gently with a damp cloth; avoid harsh chemicals.

  • Replace insulation if deteriorated to prevent efficiency loss.

  • Have a licensed HVAC technician inspect during annual system maintenance.

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