Mr Cool 5th Gen. DIY 35ft No Vac Lineset w/DIY Pro Cable for 9k, 12k, 18k R-545B

Mr Cool 5th Gen. DIY 35ft No Vac Lineset w/DIY Pro Cable for 9k, 12k, 18k R-545B

he MR COOL 5th Gen DIY 35ft No-Vac Line Set with DIY Pro Cable (Model: DIY35-1412C-O, R-454B) is made to extend the connection between your indoor air handler and outdoor condenser while keeping installation simple—no vacuum pump, no brazing, and no refrigerant handling. It’s factory pre-charged and uses No-Vac Quick Connect fittings, with a protected DIY Pro Cable included for power/communication.

Country of Origin: China

Key Features / Specifications

• Model: DIY35-1412C-O
• Length: 35 ft
• Line sizes: 1/4" liquid line × 1/2" suction line
• Refrigerant: R-454B (pre-charged / No-Vac design)
• Connection type: No-Vac / screw-on Quick Connect fittings for faster installation
• Includes: Integrated DIY Pro Cable with protective jacket for jobsite durability
• Compatibility: Intended for MR COOL 5th Gen DIY systems that require a 1/4" × 1/2" line set (commonly 18K class indoor units)

Ideal For:

• DIY mini-split installs needing a 35-foot reach between indoor and outdoor units
• Jobs where you want a no-vac, no-brazing installation workflow
• Installations that benefit from a protected cable run (tools, animals, weather exposure)
• Replacing or upgrading an existing line set on compatible MR COOL 5th Gen DIY equipment