30 ft x 1-3/8" Crushproof Vacuum Hose, Silver RY4000 Age and dust intrusion are

Age and dust intrusion are the usual causes

Function: on/off power switch assembly

which adds noise and can throw the motor out of alignment over time

along with additional units

Confirm your model and serial range before ordering to ensure the correct fit

30 ft x 1-3/8" Crushproof Vacuum Hose, Silver RY4000 Age and dust intrusion areThis 30 foot length of crushproof vacuum hose has a 1 3 8 inch (1. 375") inner diameter and a silver finish. (SKU: 30405S) The larger 1 3 8" bore moves more air than standard 1 1 4" hose, making it a strong choice for higher airflow central vacuum systems and commercial cleaning equipment. Its helical reinforced wall gives the hose true crushproof performance it recovers its shape after being stepped on or compressed and resists kinking when routed