500 Gallon Elliptical Low Profile 3/8" Thick Polyethylene 16" Manhole with 4' Vent and a Sump Drain Rear Drain for Cleaning Lid Secured with a at Diameter Steel Cable Repairable with a 3 yr Warranty Pump Multiquip OP204H Z' Centrifugal Delivering 70 GPM to the Ground Engine 4.0 hp Honda Engine with Low Oil Ale