4" Youngs Cap Drilled - No Valve

2" Cap Complete with 8 grm CO2 Inlet / outlet Valve with Piercing Pin (Brass)

Young's Cap/Injector/Relief Valves Spare Kit

2" Cap Complete with STD CO2 Valve Inlet / Outlet (Brass)

CO2 Injector System 2" - Cap / Valve and 2 x 8 grm Bulb

2" Cap Plain 'Drilled' for Valve ( not Inc )