Designed by landfill liquid experts for the toughest landfill applications, QED Stainless Steel check valves work with the AutoPump series of landfill liquid pumps and with any pneumatic landfill pump. The corrosion resistant stainless steel valve body is easy to disassemble and service. Stainless mating surfaces resist seat water, which plagues lesser valves, dramatically reducing valve leakage. The result is a rugged product which saves time and money by staying on the job longer than standard check valves.