This internal non-return check valve is designed for use with Kamstrup 5/8" x 3/4" water meters. It is an essential component for ensuring accurate and reliable meter readings. The valve is made from high-quality materials and is built to last, ensuring long-lasting performance and reliability. It is easy to install and use, and is compatible with Kamstrup FlowIQ  model 2100 and 2200 water meters.