Thermostat Housing, Compatible Grainger Part Number 3HL18, 3HL19, 3HL20, Compatible Manufacturer Model Number N15/3015-1, N15/3015-2, N15/3015-3, Color -, Compatible Product Type Bulb and Capillary Thermostat, Enclosure NEMA Rating Not Rated, Includes Knockouts, Mounting Provisions