Store +3 MrCool DIY 4th Generation DIYCOUPLER-3/8 + DIYCOUPLER-5/8 + 75ft MC-5 Cable DIYCOUPLER-3858K75C $393.00 In stock Quantity: 1 Add to Bag Product Details This Coupler Fits the DIY 3/8 " x 5/8 " For 24000 and 36000 BTU DIY Mini Split Systems. Includes 75 Feet of MC-5 Protected Cable Save this product for later Favorite