This is the Genuine Castex 1.5 inch x 4.25 Feet Vacuum Hose. Genuine part #1014026.Specifications:Machine Application: 3540 16-Gal Battery Wet/Dry Vacuum, A3 Automatic Scrubber, A5 Automatic Scrubber, Speed Scrub (17-20-24 inch) Automatic Scrubber,...