... 2:apply to irrigation,sewage project 3:CE Trailer Diesel Water Pump P & H Series self priming trash centrifugal pumps ... without disturbing Piping♦ Semi-Opened Trash Handling Impeller♦ Pressure Relief Valve♦ O-Ring Sealed♦ External, Shimless Impeller/Wear plate Clearance ... ''(75mm), 4''(100mm), 6''(150mm), 8''(200mm), 10''(250mm), 12''(300mm)2.Impeller Diameter158.74mm-457.2mm3.Rotary Speed550RPM-2150 ...