Plastiflex 30 ft Dual-Voltage Direct-Connect Central Vacuum Hose, Grey R10S It is the insulating body

It is the insulating body that positions and retains the female electrical contacts at a connection point in the machine

which causes vibration

each bag features a sturdy green plastic collar that snaps securely into the bag chamber for a tight

Function: concentrated oil-base fragrance for bag

Plastiflex 30 ft Dual-Voltage Direct-Connect Central Vacuum Hose, Grey R10S It is the insulating bodyThe Plastiflex 30 foot dual voltage central vacuum hose (Part #CBEZ138030DCN) is a premium electrified replacement hose for ducted whole house vacuum systems. Built by Plastiflex, a leading manufacturer of central vacuum hoses, it features a smooth wall 1 3 8" inside diameter that maximizes airflow and minimizes clogs. This is a direct connect hose: the power for the electric nozzle is wired straight through the wall inlet, so there is no pigtail cord