With its UV technology, it destroys infectious organisms thereby making the water safe to drink. A perfect combination of meaningful innovation, useful features and long lasting value.Adds state of the art UV sensor technology to the F4 UV systemContinuous feedback of UV disinfection performance for added peace of mind at recommended flow rates up to 36 gpm (136 lpm)Note: The F4+ replaces the UV Max G+ system.Features & SpecsDISINFECTION FLOW RATES16mJ/cm2: 45 GPM (170 lpm) (10 m3/hr)30mJ/cm2a: 36 GPM (136 lpm) (8 m3/hr)40mJ/cm2: 27 GPM (102 lpm) (6 m3/hr)SPECIFICATIONSDimensions: 44 1/4? x 4? (112.5 cm x 10 cm)Shipping Weight lbs (kg): 18 lbs (8.2kg)Connection Size: 1? FNPT Power Consumption: 130WWarranty: 7-Year Warranty on the Stainless Steel UV Reactor1-Year Warranty on UV lamps, quartz sleeves and sensor5-Year Pro-rated Warranty on all other components