The SHURflo® 2088-594-154 is a 115-volt AC diaphragm pump built for permanent hardwired installations in portable restroom service rigs, sanitation trailers, and temporary water systems. Connects via bare 18 AWG leads — no power cord — designed for direct wiring into your electrical panel or control box. Features: automatic demand switch, Santoprene® valves, Santoprene® diaphragm, polypropylene housing, and 1/2" NPSM ports. Self-primes to 12 vertical feet. Maximum open flow: 3.3 GPM. Shutoff pressure: 45 PSI. UL Recognized (US & Canada), CSA, and NSF listed.