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

RIDGID R4331 planer port: measured 2-1/2 in and 4 in dust ports. 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

RIDGID R4331 planer port dust port size

The measured dimensions of the RIDGID R4331 planer port and the hose sizes it mates with.

OD64 mm2-1/2 in, 64 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)2-1/2 in, 64 mm
Manufacturer designation2-1/2 in and 4 in dust ports
Mating diameter (mm)64

Shop notes

Found on: RIDGID R4331 and R4330 13 in benchtop planers.

The RIDGID benchtop planer offers both a 2-1/2 in port for a shop vac and a 4 in port for a collector. The 4 in path is the one that keeps pace with a planer's heavy shaving output.

Questions and answers

What is the port type of the RIDGID R4331 planer port dust port size?

male spigot (hose goes over it)

What is the outer diameter (od) of the RIDGID R4331 planer port dust port size?

2-1/2 in, 64 mm

What is the manufacturer designation of the RIDGID R4331 planer port dust port size?

2-1/2 in and 4 in dust ports

What is the mating diameter (mm) of the RIDGID R4331 planer port dust port size?

64