This is our versatile, easy to use hand stroke pump that will transfer liquid from a standard 5, 15, 30 and 55 gallon drum. Each stroke can produce any amount up to 8oz per stroke. This pump is constructed with stainless steel material and PTFE seals. This allows the pump to handle heavier chemicals and aggressive liquids. The pump can also move a variety of other liquids, even ones that are thicker than water. Examples would be detergents, lubricants, chemicals, alcohols and oils. This is a sturdy, well built, industrial grade pump for everyday use.