Large Sized Exhaust Valve Seal and Check Valve Seal for Crosman pneumatic airguns models 100, 101, 102, 104, 105, 106, 107, 108, 109, 110, etc. These are modern seals made from Buna N used to make typical airgun seals. The OD of this seal is 0.445 inches. Generally these are too soft for CO2 guns.
