Consider upgrading to a Low Voltage Hose for a few dollars more.
The Low Voltage Hose features:
*Note: DuoVac Vacuum is a registered trademark of DuoVac, not M.D. Manufacturing, Inc. Products sold by M.D. Manufacturing, Inc. are not from DuoVac Vacuum but are designed to complement a DuoVac Central Vacuum. Therefore, parts and products carry warranties from MD Manufacturing and not DuoVac Vacuum and thus may alter the warranty provided by DuoVac Vacuum.