Check the listing for details. 3pc O-Ring Fits Big Blue Housings Replace Pentair Pentek 151122 Culligan OR-100. Condition: New. Listed at 10.99 USD. Heavy Duty Filter Housing O-Ring Fits Big Blue Housings Replaces Pentair Pentek 151122, Culligan OR-100 , ACE 4001756 & AP WP-10 OR Size: 5.500 ID x 5.800 OD x 0.165 c/s , Precision Ground Sealing Surface with No Parting Line for Leak Path ResistanceMade from NBR 70 that Conforms to the (FDA) regulations per paragraph 21 CFR § 177.2600 'Rubber articles intended for repeated use'.Includes 3 packs of Super Lube Grease. Non-Toxic, Non-Staining, USDA H1 Rated, Safe in potable water, Impervious to Salt Water. Will not Dry Out or Evaporate.Made in Taiwan, NOT China Aftermarket Parts Replaces the following #’s:Pentek 151122 (Pentair)ACE Hardware 4001756Culligan OR-100American Plumber WP-10 OR Fits Housings:Pentek: 150237, 150239, 150469Culligan: HD-950, HD-950AAmetek: HD-10-R50 BBSAmerican Plumber: 152014, 152015, 152016, W2015-PR, W15-PR, W2010-PR, W10-PR, WHCF-DWHBB, WWHC, 152017, 152022