.R-217 Square O-Ring (ID: 1 3/16", CS 1/8", OD 1 7/16"), 36PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.
.R-113 Square O-Ring (ID: 9/16", CS 3/32", OD 3/4"), 36PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.
.R-431 Square O-Ring (ID: 5 1/4", CS 1/4", OD 5 3/4"), 4PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.
R-375 Square O-Ring (ID: 9 1/2", CS 3/16", OD 9 7/8"), 90PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces..