Use with cleaners, waxes, food products, cooking oils, hand soap, shampoo and germicidal detergents. The 10BC Buttress Cap allows use of the 10HL on a five gallon pail with a flexi-spout. The unique threaded body disassembles quickly for sanitary cleaning. The body and head are polypropylene for maximum chemical compatibility. Standard with poly flap valve (HDPE). Made from FDA and USDA approved materials.