The UVMAX G Plus Model is a 20 GPM point-of-entry system that renders chlorine-resistant parasites, bacteria and viruses such as Cryptosporidium, Giardia and E. Coli harmless. This system features a UV output sensor, lamp age indicator, malfunction monitor, CoolTouch fan and stainless steel chamber. The UVMAX G+ has been discontinued with the VIQUA F4+ 650687 as its replacement.