Guide Rail System Material Cast Iron For Use With 4WDA 4DWS 4DWN 4WS 3888D4 4SD 4NS 4GV 4MV 4MK Overall Height 38 in Requires 2 in Stainless Steel Guide Rails Lifting Chains and Bails Includes Base Adapter Bolts and Fittings and Upper Guide Rail Positioning Bracket Pump Discharge 4 in Flange Rail System Discharge 4 in Flange