R-262 Square O-Ring (ID: 7", CS 1/8", OD 7 1/4"), 60PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces..
R-433 Square O-Ring (ID: 5 1/2", CS 1/4", OD 6") (1 Square O-Ring) The o ring is placed into a groove to secure them in place, and then compressed between two surfaces..
.R-109 Square O-Ring (ID: 5/16", CS 3/32", OD 1/2"), 4PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.
R-264 Square O-Ring (ID: 7 1/2", CS 1/8", OD 7 3/4"), 60PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces..
R-257 Square O-Ring (ID: 5 7/8", CS 1/8", OD 6 1/8"), 240PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.