Mr Cool 5th Gen. DIY 25ft No Vac Lineset for 24k, 36k R-545B (3/8" & 5/8" Lines)

Mr Cool 5th Gen. DIY 25ft No Vac Lineset for 24k, 36k R-545B (3/8" & 5/8" Lines)

The MR COOL 5th Gen DIY 25ft No-Vac Line Set (R-454B), 3/8" & 5/8" is designed to connect compatible 24K and 36K MR COOL DIY indoor units to the outdoor condenser using factory pre-charged, Quick Connect fittings—so you can install without vacuuming, brazing, or specialized HVAC tools. It’s the standard-length option for many 24K/36K DIY installs.

Country ofOrigin: China

Key Features / Specifications

• Length: 25 ft
• Line sizes: 3/8" liquid line × 5/8" suction line
• Refrigerant: R-454B (factory pre-charged line set design)
• Connection type: Quick Connect / No-Vac fittings for fast, secure installation
• Includes: communication cable (commonly included on the 25 ft R-454B cable line set version)
• Compatibility: Intended for MR COOL DIY 5th Gen systems where the indoor unit requires a 3/8" × 5/8" line set (commonly 24K & 36K class heads)

Ideal For:

• MR COOL DIY 5th Gen 24K / 36K installations needing a 25-foot run
• DIY installs where you want no vacuum pump and no brazing
• Replacing a damaged line set on a compatible R-454B MR COOL DIY system
• Jobs where keeping installation fast and clean is a priority