ZE202 - Bio-Diesel/E85 Hand Pump (1 Gallon Per 9 Strokes) is an accessory designed for dependable use with Goat Pumps fluid-transfer equipment and compatible setups. Description:. With a rugged steel construction and yellow powder coated finish, this hand pump is designed to thread into the 2-inch bung opening on 15-55 gallon drums. Includes garden hose threads to attach a hose if desired.