Duckbill Drain Valve

230 duckbill drain valve products are offered for sale by suppliers on Alibaba.com, of which check valves accounts for 58%, valves（old） accounts for 3%, and other valves accounts for 2%. A wide variety of duckbill drain valve options are available to you, such as normal temperature, medium temperature and high temperature.You can also choose from stainless steel, duckbill drain valve,as well as from black, red, and green duckbill drain valve,