The MR COOL 4th Generation DIY 35 ft Quick Connect Line Set (1/4" × 1/2") is made to connect compatible 9K, 12K, and 18K MR COOL DIY indoor units to the outdoor condenser using factory pre-charged, No-Vac Quick Connect fittings—so you can install without brazing or vacuum pumping.
Country of Origin: China
Key Features / Specifications
- Generation: MR COOL DIY 4th Gen
- Length: 35 ft
- Line sizes: 1/4" liquid line × 1/2" suction line
- Refrigerant: R-410A (pre-charged line set design)
- Connection type: Quick Connect / No-Vac fittings (tighten with wrenches for seal)
- Install durability: kink-resistant copper line set with protective insulation sleeve
- Compatibility: Intended for MR COOL DIY 9K / 12K / 18K systems (correct size selection matters)
Ideal For:
- DIY mini-split installs needing a 35-foot run between indoor and outdoor units
- 9K/12K/18K MR COOL DIY 4th Gen systems where the standard line length won’t reach
- Garage, shop, addition, and outbuilding installs where condenser placement is farther away
- Replacing a damaged line set on a compatible MR COOL DIY 4th Gen setup