Rheem Ruud SP20832A Gas Control 319848 301 This kit utilizes a professional grade This kit utilizes a professional grade drain line heater (heat tape) designed to maintain fluid temperatures and ensure continuous drainage during extreme cold cycles the LH33WZ008 provides a high reliability solution that maintains consistent ignitor voltage and current draw Enhanced Safety: Built in CSA approved design regulates fuel flow to the burner assembly while monitoring water temperature to ensure safe operating limits The Rheem Ruud SP20832A Natural Gas Control is a precision engineered OEM gas valve thermostat designed for high performance temperature regulation in specific natural gas water heaters