Shop for Heating, Venting & Cooling at The Home Depot. The Cadet CS4M surface mounted 4 in. deep adapter for Cadet C, CS, or CM series heaters features a smooth almond finish and mounts onto a wall for added convenience. Packaged separately from the heater assembly, a new installation still requires a wall can when using a surface mount adapter. Com-Pak Plus and Com-Pak Max series heaters are packaged separately in many available wattages.