WAYNE RPP50 Cast Iron Sewage Pump With Piggy Back Tether Float Switch $179.99 1/2 hp; max. Flow rate is 6200 gallons per hour; 3240 gph at 10 ft. Of discharge lift Durable, cast iron submersible sewage pump 2 in. Npt discharge capable of handling up to 2 in. Solids Add to cart