The Honeywell Q281A1047 Aquastat Well is a replacement sensor housing designed for Honeywell Q28 aquastat assemblies. It features a 1/2 in NPT threaded connection to accept a temperature probe and includes 1-1/2 in insulation around the well. Identified by model number Q281A1047, this part is part of Honeywell’s Q28 aquastat well family and is used to house and protect a sensing element in heating-control installations. The combination of a standard NPT thread and insulated well supports reliable sensor placement within compatible Honeywell Q28 systems.
