Check the listing for details. Yellow Jacket Hex Key Valve Adapter for 3/16, 5/16" HEX #60609. Condition: New. Listed at 18.95 USD. Gregoriou Brothers Refrigeration Since 1979Frosty-Freeze Yellow Jacket Hex Key Adapter for 3/16, 5/16HEX #60609 Our part number: Ritchie-60609 Heat-treated hex works for 3/16" and 5/16" hex valves. Black Oxide plated. Use this with Ritchie # 60616, 60612, 60618 Service wrenches. For accessing liquid and suction based valves on residential and commercial units up to 7.5 tons. $Our part number: Ritchie-60609 Heat-treated hex works for 3/16" and 5/16" hex valves. Black Oxide plated. Use this with Ritchie # 60616, 60612, 60618 Service wrenches. For accessing liquid and suction based valves on residential and commercial units up to 7.5 tons. Gregoriou Brothers Refrigeration Since 1979Frosty-Freeze Yellow Jacket Hex Key Adapter for 3/16, 5/16HEX #60609 Our part number: Ritchie-60609 Heat-treated hex works for 3/16" and 5/16" hex valves. Black Oxide plated. Use this with Ritchie # 60616, 60612, 60618 Service wrenches. For accessing liquid and suction based valves on residential and commercial units up to 7.5 tons. Our part number: Ritchie-60609 Heat-treated hex works for 3/16" and 5/16" hex valves. Black Oxide plated. Use this with Ritchie # 60616, 60612, 60618 Service wrenches. For accessing liquid and suction based valves on residential and commercial units up to 7.5 tons.