The Franklin Machine Products 117-1350 Water Filtration Housing O-ring is an essential component designed to ensure the effective sealing of water filtration systems. With an outer diameter of 5-3/4 inches and an inner diameter of 5-1/2 inches, this O-ring fits snugly into filtration housings, preventing leaks and maintaining optimal performance. Crafted from high-quality rubber, the O-ring is durable and resilient, capable of withstanding the rigors of constant water flow and pressure changes. Its black coloration signifies its robustness and suitability for various water filtration applications. Certified by NSF, this O-ring meets stringent safety and performance standards, making it a reliable choice for food service establishments, laboratories, and industrial water treatment facilities. The Franklin Machine Products 117-1350 O-ring plays a vital role in the maintenance and efficiency of water filtration systems, ensuring clean and safe water output. With its precise dimensions and material composition, this product is engineered to provide long-lasting service, contributing to the overall reliability and effectiveness of water filtration mechanisms across different industries.