The OWS Replacement Insert Check Valve Single Pack ensures your aeration system operates at peak efficiency by preventing backflow and maintaining consistent airflow. Designed for use with windmill or compressor setups, these durable valves drop in without modifications, restoring system performance quickly. A failing check valve can reduce oxygen output, strain equipment, and lead to water quality issues-this replacement solves that problem efficiently.

Made from high-performance plastic and rubber blends, it resists weathering and works year-round. Ideal for DIY pond maintenance or professional use, this valve is purpose-built for OWS systems, delivering reliability when it matters most.