Siemens 192-480 WALL BOX ROUGH-IN, 1 OR 2 PIPE, ACCESSORY & SERVICE KIT, PRODUCTS 186, 19X, 832Siemens 192 480 Wall Box Rough In, 1 or 2 Pipe, Accessory Service Kit, Products 186, 19X, 832 This is a Wall Box Rough in Accessory and Service Kit Used with Product Groups 186, 19X, 832, Room and Duct Hygrostats, Powerstar, D Series, For 1 or 2 pipe dual 1 4" OD Polyethylene with Plaster Plate, Thermostat Chassis Plug in Adapters for maintenance