The attachments and tools are designed to fit the 1-1/2 inch (1.5 in) (38.1 mm) hose and accessory ports for SHOP VAC.

Pls use “Ctrl+F” to find your model:

Shop-Vac® 16 Gallon* 6.5 Peak HP** Stainless Steel Contractor Series Wet/Dry Vacuum with SVX2 Motor Technology
Shop-Vac® 18 Gallon* 6.5 Peak HP** Contractor Series Wet/Dry Vacuum with SVX2 Motor Technology
-25%
New
(4) Original price was: $40.59.Current price is: $30.44.
-15%
New
(5) Original price was: $45.27.Current price is: $38.48.
-25%
(4) Original price was: $33.95.Current price is: $25.46.
-25%
(2) Original price was: $20.34.Current price is: $15.26.