Material:polypropylene. 304ss rod, Seals made of viton )

The pump lever handle self priming with a plastic piston and body for excellent chemical resistance.. Fits 15-gallon drums through 55-gallon drums with 2" bung opening threads for plastic drums.Piston and Body constructed of Polypropylene with 304#stainless steel rod to be used with chemicals, acids, alkali and other water based products. (compatibility chart available upon request). This drum pump works great as a acid pump. Removable spout, telescoping suction tube. Self-priming and self-venting. This barrel pump dispenses approximately 12 ounces per stroke.