Whole House Water Filter System, 5-Stage Filtration with Carbon and Sediment Filters,Includes Extra RPFK Filter

Waterdrop Whole House Water Filter System, Reduce Iron and Manganese, with Carbon and Sediment Filters, 5-Stage Filtration, Reduce Iron, Lead, Chlorine, Odor, 2-Stage WD-WHF21-FG, 1 in. Inlet/Outlet Extra RPFK Water Filter. Brand Waterdrop Special Feature NSF/ANSI 372 Certified, Working Temperature 4-38°C/40-100°F. Do not use the product in an environment below 40°F NSF/ANSI 372 Certified, Working Temperature 4-38°C /40-100°F. Do not use the product in an environment below 40°F.