Spec Sheet Preview: Model UM3004W Shown The Alpha Communications® / S.T.R.™ UM3004 flush adapters are designed to work specifically with any of the HT3000 series intercom handsets, to allow the handsets to be flush mounted into a finished wall. All UM3004 flush adapters feature a flush mount plastic wall housing and textured finish front faceplate, to match the handset color (White or Anthracite) and texture. The UM3004 flush adapters are available in two (3) colors; UM3004A (Anthracite/Charcoal), UM3004T …