Reliable water filtration starts with the right sealing and flow-control components. McMasters Koss supplies O-rings, umbrella valves, duckbill valves, and custom gaskets for filter housings, pumps, dispensers, fittings, and other residential, commercial, and industrial water systems.

Our team can help you select the right material, size, and design for dependable sealing, controlled flow, and long-term performance. With engineering support, inspected quality, water-contact material options, and dependable production delivery, McMasters Koss makes it easier to take your filtration system from concept to production.

Send us your drawing, sample, or application requirements to find the right solution for your water filtration product.