Chris Christensen Shampoo Pump for3.8L container Smart, dependable choice for groomers or anyone who frequently dispenses pet shampoos Convenient and durable pump screws securely onto any gallon container. Dispenses approximately of an ounce of liquid. Imported from USA (Sizes & Specifications are based on the USA Market).The Top Performance Gallon Pump is a smart, dependable choice for groomers or anyone who frequently dispenses pet shampoo and pet conditioner.Each pump, when fully depressed, dispenses approximately of anounce of liquid. This pump is made of easy-to-clean white plastic.