Store +3 MrCool DIYCOUPLER-1/4 + DIYCOUPLER-1/2 (Two Sets) w/ 75 ft of Communication Wire DIYCOUPLER-1412K75 $182.00 In stock Quantity: 1 Add to Bag Product Details This DIY Coupler Fits the 1/4" x 1/2" Lineset Kit for 9k, 12k, and 18K Air Handlers. Includes 75 Feet of Communications Wire Save this product for later Favorite