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Captain O-Ring – Replacement O-Rings for AO Smith Whole House Water Filter Housing (3 Pack)
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Category: aquaboon replacement o rings

About this item
- 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!
- Compatible with A.O. Smith AO-WH-PREL and Lowe's Project Source PS-WHL-H entire home water filter systems.
- 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).
- 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.













