The DGR12-LPS Rail System is tailored to your specific hydraulic needs for low pressurized sewer system requirements. Engineered with heavy duty cast iron lift-out elbow with built-in check valve. SST hardware and anti-siphon protection, the DGR12-LPS Rail System is the preferred choice. Offered in simplex or duplex design with centrifugal submersible grinder pumps coupled with a range of quality controls and accessories.