Shurflo Blaster II Washdown Pump 3.5 GPM The Shurflo Blaster II Washdown Pump is a high-flow fresh water pump that delivers quiet operation and smooth performance while providing the ultimate in durability and reliability. This rugged, self-priming pump delivers high lift, can run dry without damage, and wont overheat with extended use. The Blaster II is perfect for tough washdown applications, such as fish box, scaling and anchor chain cleaning. Built for long life, the Blaster II features a un