High-Capacity Spot-Free Water Filtration System for Car Washing The bigboi D-IonizR 2 Set MKII is a three-stage water filtration system built for enthusiasts and professional detailers who need greater filtration capacity for frequent vehicle washing. Combining carbon filtration with dual deionizing resin filters, it produces ultra-pure water to help eliminate water spots and deliver a cleaner finish on paintwork, glass and trim. The first-stage composite carbon filter helps reduce water hardness and contaminants before the water reaches the deionizing resin filters, extending cartridge life by up to 20%. Two high-capacity deionizing resin filters work together to produce water with a reading of up to 0 PPM, while the integrated digital TDS meter continuously displays incoming and outgoing water quality. Featuring a built-in bypass valve, the D-IonizR 2 Set MKII allows you to switch between filtered and unfiltered water during the wash process to maximise cartridge life. Designed for higher-volume vehicle washing, it provides greater filtration capacity, longer service life and consistently spot-free rinsing for professional detailing environments and serious enthusiasts.