R-209 Square O-Ring (ID: 11/16", CS 1/8", OD 15/16"), 90PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces..
.R-221 Square O-Ring (ID: 1 7/16", CS 1/8", OD 1 11/16"), 2PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.
.R-330 Square O-Ring (ID: 2 1/8", CS 3/16", OD 2 1/2"), 36PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.
R-334 Square O-Ring (ID: 2 5/8", CS 3/16", OD 3"), 90PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces..
R-442 Square O-Ring (ID: 7 1/4", CS 1/4", OD 7 3/4"), 90PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.