PortMatch
PORT / HOSE

1-7/8 in shop-vac hose diameter

The real bore and cuff diameter of the 1-7/8 in shop-vac hose and what it connects to.

ID48 mm1-7/8 in, 48 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)1-7/8 in, 48 mm
Nominal size1-7/8 in (approx 48 mm)

Shop notes

Used on: Mid-size Shop-Vac and Craftsman wet/dry vacuums.

The 1-7/8 in hose is the awkward middle size: too big for a 1-1/4 in tool fitting and too small for a 2-1/2 in one. Many tool adapters skip it, so a two-step reducer is often needed.