It is a friction fit instead of the screw nut type and attaches securely, even though there are no threads, locking mechanism or latch. The same applies to Ridgid Wet Dry Vacuums, it works perfectly with most of their models also.
Mp Maresh Products Compatible Replacement for Shop VAC Style Wet Dry Vacuum Cleaner Crushproof Industrial Commercial Grade Extension Hose with Air
WORKSHOP Wet/Dry Vacs Vacuum Accessories WS12520A Wet/Dry Vacuum
WORKSHOP Wet Dry Vacs Accessories WS12520A Wet Dry Vacuum Hose, 1
WORKSHOP Wet/Dry Vacs Vacuum Accessories WS25020A Wet/Dry Vacuum
Repl. Shop-Vac, Ridgid & Craftsman Wet/Dry Vac 20FT Hose W/ 2.25 Cuff
WORKSHOP Wet/Dry Vacuum Attachments
WORKSHOP Wet/Dry Vacs Vacuum Accessories WS12520A Wet/Dry Vacuum
WORKSHOP Wet/Dry Vacuum Attachments
WORKSHOP Wet/Dry Vacs Vacuum Accessories WS25005A Wet/Dry Vacuum
Repl. Shop-Vac, Ridgid & Craftsman Wet/Dry Vac 20FT Hose W/ 2.25 Cuff
Shop-Vac 2021005, Micro Wet Dry Vacuum, 1 Gallon, India
Shop-Vac 2021005, Micro Wet Dry Vacuum, 1 Gallon, India
Stanley 25-1204 Wet Dry Vacuum Hose 1-1/4 inch, 5 Feet