Captain O-Ring – Replacement AO-WH-LG-OR O-Rings for AO Smith AO-WH-PREL, PS-WHL-H (PS-WHL-ORG) Whole House Water Filter Housing (3 Pack)

About this item AO-WH-LG-OR (also called PS-WHL-ORG, 1074315, or 5225369) – O-Ring measures approximately 5.48” Inside Diameter and 0.165” Thickness (approximately 14cm ID). Compatible with A.O. Smith AO-WH-PREL and Lowes Project Source PS-WHL-H whole house water filter housings. Often referred to as “Large 4.5” O-Ring” because it is compatible with the AO Smith AO-WH-PREL filter housing that uses 4.5 inch wide filter cartridges. Not compatible with the smaller “standard” AO Smith or Project Source housings that use 2.5 inch filter cartridges. Includes three (3) o-rings (also called gaskets or seals). An exact match to the o-ring that came in your filter housing when it was new. Molded from NSF 61 certified buna-n rubber for safe and clean drinking water. Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA!