F1, F2, F4 valve oring set. 4 orings, 2x Poly and 2x Buna included. These orings fit the standard F1, F2 and F4 valves. They will also fit the AFT. These will not work on ACI Griffins. The Urethane oring goes on the back of the valve (seals against hp in valve) and the buna go on the front of the valve and only seals against pressure when paintgun is cycling. Valve not included.
