Drain duck bill valve - rubber stop valve

(KN95) Dust Mask Ear Buckle FH-X101R

US $0.06 / set

Min. Order: 20000 set

Rubber duckbill check valve

duckbill valve,Rubber check valve

US $60 / pc

Min. Order: 1 pc

Cast iron Duckbill pipe flange Duckbill pipe flange

US $21.99 / pc

Min. Order: 100 pc

Silicone Medical Duckbill Shaped Valves for Oxygen Resuscitator

US $0.035 / pc

Min. Order: 10000 pc