This  SHURflo® 2088-443-144 series is considered to be the workhorse of pumps. This unit is ideal for spraying down units in the field. Offering a maximum flow of 3.5 GPM with a shutoff pressure preset at 45 PSI. If you're looking for the best value, you just found it. Features include: Built in check valve rated up to 200 PSI, automatic demand, reliable and rugged, can run dry without damage, and self primes up to 12 feet.