Instead of spending a fortune replacing your entire heavy-duty pressure washing machine, upgrade its core with the VEVOR Horizontal Triplex Plunger Pump. 1 x Clear Siphon Tube (3.3 ft). Enhanced Ceramic Plungers & Anti-Friction Bearings: Built with ultra-hard ceramic plungers (rated at 900 hv hardness) and stainless steel parts (50 hrc), this pump minimizes wear caused by water impurities.