Square O-Ring (ID:8 mm, CS:1 mm, OD:10 mm), 36PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces..
R-020 Square O-Ring (ID: 7/8", CS 1/16", OD 1"), 4PK 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"), 2PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.
R-028 Square O-Ring (ID: 1 3/8", CS 1/16", OD 1 1/2"), 24PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces..
R-219 Square O-Ring (ID: 1 5/16", CS 1/8", OD 1 9/16") (1 Square O-Ring) The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.