R-033 Square O-Ring (ID: 2", CS 1/16", OD 2 1/8") (1 Square O-Ring) The o ring is placed into a groove to secure them in place, and then compressed between two surfaces..
R-022 Square O-Ring (ID: 1", CS 1/16", OD 1 1/8"), 48PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces..