SimPure Whole House Water Filter Filtration Purification O Ring, Seals, Gaskets, Replacements for DB10P/DB20P（(Not for DB10C) Housing Standard BB 10"X4.5", 20"X4.5" (2 Pack)

Compatibility – Set of 3 replacement O-rings for SimPure whole house filter housings DB10P, DB20P, and any compatible housing with matching O-ring dimensions. Material – Made from durable nitrile butadiene rubber (Buna-N) for flexibility and long-lasting wear resistance. Installation – Easy to install without grease; surfaces should be free of debris. Compatible with silicone or petroleum-based lubricants. Recommendation – For optimal performance and to prevent possible leaks, it’s suggested to replace O-rings when changing the filter cartridge.