Valterra 6101 PVC Gate Valve, White, 1-1/2" Slip PVC hubs and body for resistance to corrosion and chemicals 304 stainless steel shaft and polypropylene paddle for resistance to corrosion and chemicals Maximum pressure rating of 45 psi, with a mid-flow maximum pressure rating of 6 psi TPV seals for dimensional stability and chemical resistance 1-1/2" female slip connections