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

Dust collector 5 in inlet: measured 5 in inlet (approx 127 mm). 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

Dust collector 5 in inlet dust port size

The measured dimensions of the Dust collector 5 in inlet and the hose sizes it mates with.

ID127 mm5 in, 127 mm

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

Measured port dimensions

Port typefemale socket (hose goes into it)
Inner diameter (ID)5 in, 127 mm
Manufacturer designation5 in inlet (approx 127 mm)
Mating diameter (mm)127

Shop notes

Found on: Single-stage 1.5 to 2 HP dust collectors from Grizzly, Jet and Shop Fox.

Many single-stage collectors have a 5 in inlet that splits into two 4 in ports or takes a 5 in main duct. A 4 in hose needs a 4-to-5 in increaser to reach it, and the larger inlet keeps duct velocity up on longer runs.

Questions and answers

What is the port type of the Dust collector 5 in inlet dust port size?

female socket (hose goes into it)

What is the inner diameter (id) of the Dust collector 5 in inlet dust port size?

5 in, 127 mm

What is the manufacturer designation of the Dust collector 5 in inlet dust port size?

5 in inlet (approx 127 mm)

What is the mating diameter (mm) of the Dust collector 5 in inlet dust port size?

127