HomeParts & AccessoriesPro-Set 5/16″ (1/2″ -20) FEM X 1/4″ Male Adaptor Pro-Set 5/16″ (1/2″ -20) FEM X 1/4″ Male Adaptor$29.95 Pro-Set 5/16" (1/2" -20) FEM X 1/4" Male Adaptor quantity Buy now SKU: PRO-FEM Category: Parts & Accessories Product ID: 1897 Related products $95.00 Nu-Calgon Nu-Brite Condenser Coil Cleaner 1 Gallon / 3.8 Liters $89.95 K-Flex USA 620 Adhesive Black 1 Pint $149.00 DiversiTech Coil Guard CG-AER 19 fl oz (Clear Formula)