Direct Replacement For Hardware 4001756; American Plumber 152032, W10-OR; APEC O-RING-HB; Ametek -Plus 151122-03; OR-100, 151122-27, 01019189; HomeMaster Oring122; Pentek 151122, BUNA-NPentek Housing Compatibility Pentek 10 and 20 Big Blue opaque filter housings with 1 inch or 1-1/2 inch inlet/outlets; Pentek 150233, 150234, 150235, 150236, 150237, 150238, 150239, 150240, 150467, 150468, 150469, 150470, 150686, 150687, 150689, 150690, 150688, 150691, BBFS-22, BBFS-222Other Housing Compatibility Aqua- H-PR-10BV-1; APEC HBB-20/HBB-10 series (input sizes: 3/4 inch, 1 inch, 1.5 inch), HBC-20/HBC-10 series (input sizes: 3/4 inch, 1 inch, 1.5 inch); Hardware 49561; Ametek -Plus HD-10-R50, ; American Plumber W10-PR, 152014, W2010-PR, 152015, W15-PR, 152016, W2015-PR, 152017, WWHC, 152022; HD-950, HD-950A; BF7which are used in various applications, such as drinking water purification, swimming pools, industrial processes, and more.Part: Pentek Water 151122 O-Ring (3 Pack)Includes 3 replacement o-rings (also called seals or gaskets) to repair your leaking water filter housing151122 Size o-rings are approximately 5.5 inch Inside Diameter x 5.83 inch Outside Diameter x 0.165 inch ThicknessPart Number: 15112Inside Diameter: 5.5 inchesOutside Diameter: 5.83 inches Section: (Thickness) 0.165 inchesColour: blackMaterial: rubberPackage Contents:3 * O-RingOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.