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DIYCOUPLER-1412K75C MrCool HVAC Accessories Coupler W/ 75 ft MC-5 Cable Air Coupler

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Regular price $372.00 USD
Regular price Sale price $372.00 USD
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At HVAC Delivered, we understand the diverse needs of HVAC professionals, homeowners, and building managers. Catering to our commitment to efficiency and expertise, we introduce the MrCool HVAC Accessories Coupler designed for the most intricate installations.

With a deep commitment to efficiency and expertise, our MrCool HVAC Accessories Coupler is designed to seamlessly connect two line sets, making it ideal for larger length installations. Offering a maximum reach of 75' per zone, this coupler ensures that any Mr. Cool multi-zone system provides ample coverage without sacrificing efficiency. Furthermore, its compatibility with 9K, 12K, and 18K Airhandler line sets means it can cater to a wide variety of installation scenarios.

Prioritizing safety, the coupler boasts a 3/4-inch insulation sleeve that effectively prevents condensation, promoting both longevity and durability. In line with Proposition 65 guidelines, we believe in transparency and inform our customers that this product contains chemicals known to the State of California to potentially pose health risks. Rounding off the offering, the coupler includes a 75-foot MC-5 Cable, expertly designed to connect the air handler to the condenser, saving you the hassle and added expense of separate purchases.

DIYCOUPLER-14 and DIYCOUPLER-12 are included in the DIYCOUPLER-1412K75C, along with 75 feet of MC5 Pro Cable for a continuous run from your interior location.


  • MrCool — Universal Quick Connect Line Set (9K, 12K, or 18K DIY series)

Warning: This product can expose you to chemicals including Lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to:


✅75 foot MC-5 Cable connects air handler to condenser.
✅Compatible with 9K, 12K, and 18K Airhandler line sets.
✅3/4-in insulation sleeve prevents condensation.


Item Dimensions: 11"W x 22.5"D x 4.5"H
Item Weight: 6.39 lbs
Item Color: Copper
Unit Type: Accessories
Equipment Type: Coupler

Line Set Use: Mr. Cool DIY ONLY
Line Set Size (in.): 1/4 x 1/2
Liquid Connection Size (in.): 1/4"
Suction (Gas) Connection Size (in.): 1/2"
Communication Wire Included (ft.): 75'

Proposition 65 Warning: Yes


Install Manual,

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