Additional Details ------------------------------ Bullet point: DURABLE BUNA-N CONSTRUCTION: This water filter o-ring features robust Buna-N rubber gasket material engineered for rigorous daily use in whole-house water filter systems. The durable flat gasket resists compression, cracking, and chemical degradation, ensuring years of reliable performance. Unlike generic rings that deteriorate quickly, this OEM-quality seal maintains flexibility through countless filter changes, protecting your home water filter investment with dependable leak-free service. Product description: The IPW Industries Watts Flow-Max FM20041-B O-Ring is an essential replacement component for maintaining your whole house water filter system. Crafted from durable Buna-N rubber gasket material, this flat gasket o-ring is specifically engineered to provide a secure, leak-proof seal for Flow-Max FM20041-B filter housing models. This water filter o ring withstands the rigors of daily use, resisting compression, cracking, and chemical degradation from chlorinated water. Its precise dimensions ensure a best fit, eliminating common issues found with generic rubber o rings such as water bypass or pressure loss. The robust construction maintains flexibility through countless filter changes, protecting your home from costly water damage. Installation is simple and hassle-free - the flexible rubber gasket slides smoothly into the housing groove without special tools, creating an immediate water seal. Whether you're performing routine sediment filter maintenance or replacing a worn gasket, this o-ring delivers seamless performance. As an essential spare part for your water filtration system, this OEM-quality component ensures optimal system performance, maintaining proper water pressure and flow rate. Smart homeowners keep this affordable replacement on hand for routine maintenance or emergency repairs, ensuring uninterrupted access to clean, filtered water.