PortMatchMatch any tool dust port to any shop-vac or collector hose, with the exact reducer

Not a direct fit. Joining the DeWalt DWE6423 sander stepped port to a 1-7/8 in shop-vac hose needs a 26 / 32 / 35 mm to 1-7/8 in step reducer. Measured OD and ID of each end, the real-world trap, and the exact reducer to buy.

Updated 05 September 2026.

CONNECTION

Connect a DeWalt DWE6423 sander stepped port to a 1-7/8 in shop-vac hose

How to join a DeWalt DWE6423 sander stepped port to a 1-7/8 in shop-vac hose, and what stops it leaking dust.

Reducer required

Not a direct fit. Joining the DeWalt DWE6423 sander stepped port to a 1-7/8 in shop-vac hose needs a 26 / 32 / 35 mm to 1-7/8 in step reducer.

END B47.6 mm1-7/8 in shop-vac hose (1-7/8 in ID)
END A35 mmDeWalt DWE6423 sander stepped port (1-3/8 in OD, 35 mm OD)

Rings drawn to scale from the measured diameters in the table below.

The two ends

End ADeWalt DWE6423 sander stepped port (1-3/8 in OD, 35 mm OD)
End B1-7/8 in shop-vac hose (1-7/8 in ID)
Fit typemale port into hose cuff
Reducer needed26 / 32 / 35 mm to 1-7/8 in step reducer

Shop notes

Measured across the joint between the DeWalt DWE6423 sander stepped port and the 1-7/8 in shop-vac hose, the hose (48 mm) is 13 mm larger than the port (35 mm), so the port rattles inside without gripping. A 26 / 32 / 35 mm to 1-7/8 in step reducer closes that 13 mm step so the two hold together instead of leaking at the gap.

A 13 mm mismatch feels close enough to force, and it will hold for a minute before it works loose under airflow. Fit the step ring rather than trusting friction on a gap this size.

Questions and answers

Connect a DeWalt DWE6423 sander stepped port to a 1-7/8 in shop-vac hose?

Not a direct fit. Joining the DeWalt DWE6423 sander stepped port to a 1-7/8 in shop-vac hose needs a 26 / 32 / 35 mm to 1-7/8 in step reducer.