Product overview
MRCOOL 75ft Coupler Kit with New MRCOOL DIY Pro Cable for DIY Line Sets 6K, 9K, 12K & 18K Air Handlers - 1/4" x 1/2"
With the 75ft MRCOOL DIY Coupler Kit, you can connect three line sets together and extend the length of the lineset. You can add three 16ft linesets together, three 25ft linesets together, or a combination of 16ft and 25ft, 35ft, 50ft linesets together.
The DIYCOUPLER-1412K75 product includes one of the DIYCOUPLER-14 and one of the DIYCOUPLER-12 (1/4" x 1/2" coupler) with 75 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 75 foot wire. This product is intended for use with the 1/4" 3/8" lineset and also the 1/4" 1/2" lineset so it is compatible with the 6,000 9,000, 12,000, and 18,000 BTU indoor wall units. We also sell the coupler kit for the 24,000 or 36,000 BTU indoor wall units.
In-stock systems ship fast and free with curbside freight delivery, typically arriving in 4–10 days. Please inspect each box at delivery and note any damage on the receipt before signing — it keeps any freight claim quick and simple.
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At a glance
Tech specs
| Zones / rooms | 1 Zone |
|---|---|
| Mount type | Ducted |
| Installation | DIY |
| Brand | MRCOOL |
Sizing in doubt? Our HVAC experts confirm capacity for your rooms before you order — free. Ask us about utility rebates for high-efficiency heat pumps in your area.
