It's no surprise that self-service car washes and tunnel prep unit owners are swapping out their old plunger pumps for the Hypro 2430B-P Plunger Pump. With a warranty that is unmatched in the industry and a design specially created for car washes, these products deliver consistent, reliable high pressure. Not only that, Hypro's patented cartridge technology facilitates easy maintenance of crankcase oil and all wet-end seals by simple removing only the pump head.