HWT-F1000S In Sink Erator Hot Water Tank and Filtration System. This is the replacement system for obsolete SST-FLTR. The redesigned stainless steel hot water tank (HWT-F1000S), includes the new water filtration system (F-1000S), It is re-engineered for longer life and improved performance with a 2/3-gallon capacity tank, tool-free connections to ease installation, and dry-start protection for peace of mind. This tank provides up to 60 cups of near-boiling, filtered water per hour. Includes hot water tank and F-1000S Filtration System (Head Bracket, F-1000 Replacement Filter. Designed for use with all InSinkErator water dispensers (except model Hot1) 115 volts, 750 watts, 6.25 amps We Come To You® 3-Year In-Home Limited Warranty on tank; 1-Year on filtration system (Excludes replacement filter cartridges) F-1000 filter reduces particulates, chlorine taste and odor (NSF 42 Certified) Recommended 6 months filter replacement for optimal performance Filter bracket head compatible with only F-1000 and F-2000 replacement filters.