ProTeam With Screws Tail Vacuum Motor Compression Ring S12 securing the hose coupling where

securing the hose coupling where it locks into the machine

The cover kit mounts in place of the original for a direct fit

It caps the cover-release mechanism

That matters most in commercial settings

and the 14

ProTeam With Screws Tail Vacuum Motor Compression Ring S12 securing the hose coupling whereThis genuine OEM ProTeam motor compression ring (part #100335) ships with its mounting screws and secures the motor at the tail of the backpack unit. The ring clamps the motor in place and helps maintain the seal around it. A cracked or loose compression ring lets the motor shift and vibrate, which adds noise, stresses the mounts, and can break the seal around the motor. Left loose, the movement accelerates wear. A sound ring holds the motor firmly