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Karcher NT 35 mm hose: measured bore 35 mm (1-3/8 in). Which tool dust ports it fits directly and where a reducer is needed.

Updated 05 September 2026.

PORT / HOSE

Karcher NT 35 mm hose diameter

The real bore and cuff diameter of the Karcher NT 35 mm hose and what it connects to.

ID35 mm1-3/8 in, 35 mm

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

Measured hose dimensions

Fitting typefemale cuff (goes over a port or into a socket)
Inner diameter / bore (ID)1-3/8 in, 35 mm
Nominal size35 mm (1-3/8 in)
Mating diameter (mm)35

Shop notes

Used on: Karcher NT and WD wet-dry vacuums.

Karcher's wet-dry vacs use a 35 mm hose that connects to the common 35 mm tool ports, with a 35-to-2-1/2 in adapter for power-tool cuffs sized to the larger class.

Questions and answers

What is the fitting type of the Karcher NT 35 mm hose diameter?

female cuff (goes over a port or into a socket)

What is the inner diameter / bore (id) of the Karcher NT 35 mm hose diameter?

1-3/8 in, 35 mm

What is the nominal size of the Karcher NT 35 mm hose diameter?

35 mm (1-3/8 in)

What is the mating diameter (mm) of the Karcher NT 35 mm hose diameter?

35