R-241 Square O-Ring (ID: 3 7/8″, CS 1/8″, OD 4 1/8″) by ContractorsX
R-241 Square O-Ring (ID: 3 7/8″, CS 1/8″, OD 4 1/8″) by ContractorsX ContractorsX Square O-Rings are used to block a path which may otherwise allow a liquid or a gas to escape. The o ring is placed into a groove to secure them in place, and then compressed between two surfaces. Features: 1) Helps to eliminate leaks in many applications, such as faucet drips at the spout 2) Nitrile rubber construction 3) Tough, flexible rubber construction 4) Dimension in SAE: ID: 3.859″, CS: 0.139″, OD: 4.137″)