AirVac Central Vacuum Deluxe Hose, 30 Ft. (V510PS) 30 ft AirVac compatible, 1-1/4 inch diameter, crush-proof hose Fits standard wall valve with 1.5 inch inside diameter. 3-way switch with 6 ft pigtail configuration Color of hose may vary: light grey or dark grey according to availability Free Technical Support, call 929.800.2980