Circulator Controller, Application Circulator, High Limit, Maximum Control Temperature 240 Degrees F, Minimum Control Temperature 130 Degrees F, Differential Temperature 10 Degrees F Fixed (High Limit), 10 Degrees F to 25 Degrees F Adjustable (Low Limit), Mounting Orientation Horizontal, Number of Switches 2, Burner Circuit Voltage Type Millivolt, Spud Size 3/4 in NPT, Contact Form SPST, Multizone Control Compatible Not Applicable, Product Type Circulator Controller