Boiler Low Water Cut-Off; Item Low Water Cut-Off; Type Probe; Applicable Standard UL, CSA; Actuation Type Automatic; Switch Type SPDT; Overall Dimensions 5-1/2" Length x 6-2/8" Width x 5-9/16" Height; Input Supply Rating 8 VA at 24 Volt AC; Pressure Rating 160 PSI; Media Handled Water; Application Residential/Commercial; Enclosure NEMA 1; Switching Capacity 50 VA; Construction Material Control Housing Galvanized Steel, Probe Insulator Glazed Ceramic, Probe Tip 316 Stainless Steel, Probe Nut 3/4" or 1/2" Threaded brass