Metlund D'MAND STS-70T-PF Hot Water Circulation System Kit, 14-Gallon Per Minute 1/2-Inch M.I.P. For runs up to 100-Foot for tank type water heaters or up to 50-Foot for tankless Designed for most homes and small businesses System includes: Taco 008 pump, activation button, 2 brass tees, 2 16-Inch flexlines To be used with any hot water system