O-Ring, ID: 3.1", W; 0.135"

O-Ring. I.D.: 3.100" or 78.7mm. Width: 0.135" or 3.4mm. Meets or exceeds manufacturer's recommended specifications. Backed by Sierra's limited lifetime warranty. I.D.: 3.100" or 78.7mm Width: 0.135" or 3.4mm Meets or exceeds manufacturer's recommended specifications Backed by Sierra's limited lifetime warranty