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Delta 22-590 planer 4 in port: measured 4 in port with 2-1/2 in reducer. What shop-vac hose fits it and the exact reducer to join it to a 1-1/4, 2-1/2 or 4 inch hose.

Updated 05 September 2026.

PORT / HOSE

Delta 22-590 planer 4 in port dust port size

The measured dimensions of the Delta 22-590 planer 4 in port and the hose sizes it mates with.

OD99 mm3-15/16 in, 99 mm
ID91 mm91 mm

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

Measured port dimensions

Port typemale spigot (hose goes over it)
Outer diameter (OD)3-15/16 in, 99 mm
Inner diameter (ID)91 mm
Manufacturer designation4 in port with 2-1/2 in reducer
Mating diameter (mm)99

Shop notes

Found on: Delta 22-555 and 22-590 13 in benchtop planers.

The Delta planer offers a 4 in machine port that steps down to 2-1/2 in for a shop vac. The 4 in collector path is the one sized for the shaving volume a planer produces.

Connect this port

Questions and answers

What is the port type of the Delta 22-590 planer 4 in port dust port size?

male spigot (hose goes over it)

What is the outer diameter (od) of the Delta 22-590 planer 4 in port dust port size?

3-15/16 in, 99 mm

What is the inner diameter (id) of the Delta 22-590 planer 4 in port dust port size?

91 mm

What is the manufacturer designation of the Delta 22-590 planer 4 in port dust port size?

4 in port with 2-1/2 in reducer