Dean Bennett is a supplier of a wide range of brass check valves, including swing types in 1", 1.25", 1.5", and 2" models, 2-hole configurations in sizes from 3/4" to 2",  and specialty styles for submersible pumps made of ductile iron or brass in sizes from 1.25" to 4".

Industrial Specialties is a manufacturer and distributor of miniature pneumatic, vacuum and fluid circuitry components. Available products include a variety of check valves constructed of metal or plastic. Plastic styles include duckbill, spring-loaded, push in and diaphragm designs. Metal check valve products are offered in ball, piston and poppet configurations.