Watts RK SS009 VT 1 Part of the RK SS009 Series roof hatch finder This internal parts repair kit This internal parts repair kit is designed for repairing a lead free low temperature hot water extender tempering valve used for hot water distribution sources The two piece galvanized steel unit works alongside the slot top drain grate and has an asymmetric slot to match the slot top drain grate This 1 inch total relief valve replacement kit is used for repairing the parts to the relief valve series SS009 which prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure Features Factory Replacement Kit