MRCOOL 50ft Line Set Coupler Kit for DIY Single Zone and Multizone 24K, 36K & 48K Air Handlers - 3/8" x 5/8"

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5 reviews

Sale price$209.00 Regular price$352.00
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MRCOOL 50ft Coupler Kit for DIY Line Sets 24K, 36K & 48K Air Handlers - 3/8" x 5/8"

With the 50ft MRCOOL DIY Coupler Kit, you can connect two line sets together and extend the length of the lineset. You can add two 16ft linesets together, two 25ft linesets together, or one 16ft and one 25ft lineset together. (If you need to connect three linesets together, make sure to get the 75ft Coupler Kit also sold on our website!

The DIYCOUPLER-3858K50 product includes the DIYCOUPLER-38 and DIYCOUPLER-58 (3/8" x 5/8" coupler) with 50 ft of communication wire.

To install the coupler kit, just disconnect the 25 foot wire pre-attached to your indoor unit and replace it with the new 50 foot wire. This product is intended for use with 24,000 or 36,000 BTU indoor wall units, but we also sell the coupler kit for the 9,000, 12,000, and 18,000 BTU indoor wall units.

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Customer Reviews

Based on 5 reviews
Worked as Advertised

I have installed 8 Mr Cool diys and they are all still running without issue.

Mike Carano

The line set and coupler seem ok but after installation I find my DIY Mr Cool is low on refrigerant and it will cost me to have it charged. Mr Cool says sometimes these line sets are a few ounces low and have to be topped up. Mr Cool does not want to take any responsibility for this even though they sold a DIY unit. I would not recommend Mr Cool for this reason.

Donald Jackson
Appreciate it

I was in need of one of these bad boys to be able to complete the install. Chill was able to ship it out to me in 4 days.

Lian Robinson

A big thank you!

Rayden Thompson
mr cool line set extension

Our handyman told us to get one of these becasue our line sets didn't quite reach. These saved us!