These self-priming water pressure pumps have a new control system with LED status display and reset capability which provides instant dry-run protection. Self-primes to 20 feet. They are compatible with inverters, have a water-cooled motor and work with or without pressure accumulator tanks. The silent operation of the M5 generates up to 20 GPM instantly on demand. Dimensions: 18″ L x 13-1/4″ H x 8-5/8″ W. Weight: 23 lbs.