Dispense 1-oz per stroke with this pump. Unique threaded body disassembles for quick sanitary cleaning. The body and head are polypropylene for maximum chemical compatibility. Standard with poly flapvalve HDPE, made of FDA and USDA approved materials. The 38mm buttress cap allows for use on a 1-gallon jug or 5-gallon pail with a flexi-spout. White.