CPS Products BV3 1/4SAE M x 1/4SAE F Ball Valve Hose Adapter (3PK) PRO-SET BALL VALVES HOSE ADAPTER TheBV3Pro-Set premium adapter ball valves can be added to any existing hose to eliminate refrigerant loss and comply with EPA regulations. 1/4SAE M X 1/4SAE F BALLVALVE 3PK BV3 Benefits: Easy 1/4 turn open/close with rugged plastic composite color-coded valve handles Oversized chrome ball for smooth operation and non-restrictive flow Individual valves include all three color-coded handle inserts