MRCOOL® Universal 25 FT No-Vac® Quick Connect Line Set – 3/8" x 3/4"

MODEL: NV25-3834

The MRCOOL® Universal 25 FT No-Vac® Quick Connect Line Set (Model: NV25-3834) is engineered for quick, reliable installation of MRCOOL HVAC systems. Pre-charged with R-410A refrigerant for 100% accuracy and protected with a 3/4" Gator-Flextra UV insulation sleeve, this line set delivers professional-grade performance with DIY convenience.

Unlike traditional copper line sets, this No-Vac® Quick Connect design eliminates unnecessary steps, reduces installation time, and ensures a secure, leak-proof fit. Perfect for homeowners, contractors, and installers, it provides seamless compatibility with MRCOOL Universal Series systems.

Built tough, this line set withstands outdoor elements, maintains refrigerant integrity, and is backed by MRCOOL’s trusted engineering—giving you confidence in every connection.

Why Choose This Line Set

✅ Pre-charged with R-410A refrigerant (4.02 oz) for precision cooling & heating

✅ Heavy-duty UV-resistant insulation sleeve for long-lasting durability

✅ Simple Quick Connect valves for leak-proof, tool-free installation

✅ Saves time with 7 fewer steps compared to conventional line sets

✅ Designed for MRCOOL Universal Series HVAC systems

✅ DIY-friendly, perfect for homeowners & pros

Specifications

Specifications at a Glance

Specification	Detail
Model	NV25-3834
Line Set Length	25 FT
Liquid Line Size	3/8"
Suction Line Size	3/4"
Refrigerant Type	R-410A
Refrigerant Volume	4.02 oz
Fitting Type	Quick-Connect
Insulation Sleeve	3/4" Gator-Flextra UV Protection
Net Weight	28 lbs
Gross Dimensions (H x W x D)	35" x 5" x 35"
Freight Class	125

What’s Included:

• MRCOOL NV25-3834 No-Vac® Line Set

• Pre-charged refrigerant (R-410A)

• 25 FT copper tubing (3/8” liquid line, 3/4” suction line)

• Gator-Flextra UV protective insulation

• Quick Connect fittings

Installation

Installations & Manuals

Product Brochure

Installation Manual

Accessory Manual