CO2 Trigger ValveRepair your old CO2 cannon or build your own custom firing system Mechanical 3 8" x 24 NF thread CO2 Valve.( with double trigger rings) NOTE: This valve is offered as a replacement part or new construction for your CO2 cannon. It does not come with instructions for use. NOTE: For use, valve requires a special milled and ported manifold bolt, ( sold separately) washers and O rings which is offered in the same repair section page. The special manifold