Mini-split installations often stall at the most critical step: evacuation and charging. Pulling a deep vacuum requires specialized tools, time, and experience—and mistakes can lead to leaks, moisture contamination, callbacks, and lost profit. The MRCOOL NV25-3834-O 25 FT No-Vac Precharged Refrigerant Line Set is a complete installation solution that eliminates those risks and gets systems running faster.

The Problem

• Traditional line sets require vacuum pumps and micron gauges

• Installation errors introduce moisture and non-condensables

• Longer labor times increase job cost and delay commissioning

• DIY and light-commercial installs face higher failure risk

The Solution: MRCOOL NV25-3834-O No-Vac Line Set

This factory-sealed, precharged line set uses MRCOOL’s patented quick-connect technology to deliver a true no-vac, no-refrigerant-handling installation. Simply connect, torque, and release—the system is ready without pulling a vacuum.

Why this solution works

• Precharged refrigerant—no evacuation or charging required

• Quick-connect fittings reduce install time and error risk

• 25-ft length ideal for most residential layouts

• Factory-sealed system keeps moisture and contaminants out

• Compatible with MRCOOL DIY & Signature systems

Best Use Cases

• Fast residential mini-split installations

• Projects without access to vacuum equipment

• Reducing callbacks caused by improper evacuation

• DIY installs that still demand professional-level reliability

Pro Tip

Always route and secure the line set before final connection. This prevents unnecessary stress on the quick-connect fittings and ensures long-term leak-free performance.

? Get the time-saving install solution:
MRCOOL NV25-3834-O 25 FT No-Vac Precharged Refrigerant Line Set