MRCOOL DIY 35ft 1/4 x 1/2 Pre-Charged Lineset for DIY 9K, 12K & 18K Indoor, 4th Generation, DIY35-1412C
$438.00
DIY 4th Generation 35ft 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor
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The MRCOOL DIY 35ft 1/4 x 1/2 Pre-Charged Lineset uses R-410A refrigerant, ensuring a seamless installation process without the need for vacuuming. This line set also includes a 35 ft. communication wire for ease of connection.
What makes the MRCOOL Line Set stand out?
- Kink-resistant design
- User-friendly screw-on connectors
- Quick Connect valves for effortless setup
- No vacuuming required
- Leak-proof performance
This 35 ft. copper line set is designed to connect the 4th Generation MRCOOL DIY Condenser to the compatible MRCOOL DIY Air Handlers (9K, 12K, and 18K models). For Multi-Zone systems, each indoor unit will require a separate line set to ensure proper system functionality.
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Specifications and Dimensions
Equipment Type R-410A Charged Line Set Weight 19.84 lbs Length 35 Feet Color Copper Line Set Fitting Type Quick-Connection Liquid Line Size 1/4 Suction Line Size 1/2 Contains Chemicals Yes Contains Aerosol Yes Contains Compressed Gas Yes Proposition 65 Warning Yes Restricted States GU;PR;VI -
Handling Line Sets
When installing your MRCOOL system, handle refrigerant lines carefully to ensure optimal performance and prevent damage.
Bending the Copper Lines: Maintain a minimum 4-inch bend radius and use smooth curves instead of sharp angles to protect the lines and ensure proper refrigerant flow.
Avoid Repeated Bending: Bending copper lines more than three times can harden and weaken them, increasing the risk of breakage. Handle with care and minimize adjustments.
For best results, use gradual bends and consult a licensed professional or our support team if needed.





