Ordering Description Product number Description: Reverse Flow Check Valves for Torches Product number: 0690-0011 Description: Reverse Flow Check Valves for Torches Product number: 0690-0012 Description: Reverse Flow Check Valves for Torches Product number: 0690-0032 Description: Reverse Flow Check Valves for Torches Product number: 0690-0033 Description: Reverse Flow Check Valves for Torches Product number: 0690-0034 Description: Reverse Flow Check Valves for Torches Product number: 0690-0035