#LH10122 Hand 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. Body constructed of Polypropylene with 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.