Brand Name: Culligan
*Interior Diameter: 2.87 in.
*Material: Rubber
*Product Type: O-Ring
*Number in Package: 1 pk
*Wall Thickness: 0.125 in.
*Brand Compatibility: Fits US-600, SY-2000, SY-2500, SY-2300, SY-2300S, SY-2650, RO-3000 or RO-3500
*Inlet: 0.375
*Shape: Round
*Packaging Type: Bagged
*Exterior Diameter: 3.12 in.