https://www.acehardware.com/departments/plumbing/pumps-and-pump-parts/well-parts/4889002
This foot valve holds prime in pump while filtering large debris from lakes, wells, ponds, etc. Long lasting, spring-loaded foot valves are manufactured with...
water sourcefoot valvebrassmfr
https://wilo.com/sg/en/Products-and-expertise/Series-Finder/Foot-valve_433.html
foot valvewilo