MRCOOL Lineset for DIY Mini Split Systems

Save 12%
18 reviews

Air Handler Size: 9K 12K or 18K (1/4" x 1/2")
Length: 16 Ft
Sale price$205.00 Regular price$232.00
In stock



MRCOOL DIY Lineset for DIY Mini Split Systems

The MRCOOL DIY Line Set is designed for installation of all MRCOOL DIY ductless mini splits. These linesets are compatible with the MRCOOL DIY Single Zone, MRCOOL DIY Multizone, and Central Ducted Mini Split Systems. The included 3/4 in. UV Protective Insulation Sleeve provides extra protection against sun damage, weather erosion or destruction from animals, etc.

If one DIY Ductless Split System Line Set isn't long enough, you can combine two to three DIY Ductless Split System Line Sets together using a coupler to increase the desired length of the line sets (Up to 75ft).

The line sets connect the condenser outside to the indoor air handler. The MRCOOL DIY Quick Connect Line Set is pre-loaded with an R410A refrigerant. It uses Quick Connect Fittings that are specifically designed for installing both Mr. Cool DIY Single and Multi-Zone Split Systems.

Since these are No-Vac linesets, they easily plug into the outdoor condenser and Wall Air Handler inside. No cutting, brazing, vacuuming, or charging required.

They are also kink-resistant and made to be easy to bend during installation. 

The linesets come in 16ft, 25ft, 35ft and 50ft options in one piece. The 35ft and 50ft linesets include a longer DIY Pro Cable communication wire in the box.

You may also like

Recently viewed

Customer Reviews

Based on 18 reviews
Sid Law
Great Service

Had wonderful customer service from Tyler and Chill before my order and received all the components quickly. During install the team at Chill where always available for any questions or concerns I had. Unfortunately, had a line set fail and the customer service from Mr Cool was less than stellar.

Kyle Whelan
Ambient temp error and terminals are too small

1 - After installing per the instruction, the unit displayed error EC53. I looked at the troubleshooting guide then search online to figure out there was a loose sensor cable on the control board.

2 - the line-in terminals are way too small for 8 or 10 gauge wire. I had the clip down the smallest ring terminals to fit.

3 - the 35ft line-set only comes with 20ft of drain tubing. This only barely worked after relocating the unit a little closer to the wall.

Overall fairly easy to install despite the instruction being sometime unclear.


Easy to work with

Jonathan Thompson
Color me impressed!!

I replaced my old worn out package heat pump and "holy" crawl space duct work with two (24&18btu) Mr. Cool multi zone systems and, so far, am very impressed by how well they handle my needs! I am anxious to see how they do during the winter months for heating, but as of now, I couldn't be happier with my purchase!! Installing myself saved me a bundle and was fairly easy to do!! I'm already recommending these systems to my friends and family!!!

Bruce Nalband

Great Service & Pricing!!!!