Hybrid Pump - Circumferential Piston & Lobe Pump complying to 3A and EHDG | MP series Lobe pump from Johnson Pump UK, provide unmatchable performance with low total ownership cost | TRA10 & TRA20 pumps are dimensional interchangeable to Waukesha Univeral I (U1) and Universal II (U2). We also supply replacement parts and re-manufacturing services U1 & U2. | TRA 500 Centrifugal Pump are dimensionally interchangeable to Fristam FP models, but with lesser spare parts inventory requirement |