R-233 Square O-Ring (ID: 2 7/8", CS 1/8", OD 3 1/8"), 120PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces..
Square O-Ring (ID:24 mm, CS:2 mm, OD:28 mm), 240PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces..
.Square O-Ring (ID:16 mm, CS:1 mm, OD:18 mm), 16PK The o ring is placed into a groove to secure them in place, and then compressed between two surfaces.