Bose Professional Bose ShowMatch SMS118 Speaker Pole Mount Adapter (M20 Threaded)

ShowMatch SMS118 Speaker Pole Mount Adapter (M20 Threaded): M20-threaded pole adapter that puts a top box over an SMS118 subwoofer. Compatible with ShowMatch SMS118 subwoofer, also AMM108 and AMM112 loudspeakers.

Bose specifies it for indoor or outdoor and measures 1.0 in x 4.6 in x 4.6 in (25 mm x 118 mm x 118 mm) at 0.8 lb (0.4 kg). It ships under part number 863314-0010 (ShowMatch SMS118 Speaker Pole Mount Adapter M20 Threaded).