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Connect a SawStop table-saw rear guard port to a 2-1/2 in shop-vac hose

How to join a SawStop table-saw rear guard port to a 2-1/2 in shop-vac hose, and what stops it leaking dust.

Direct fit

These connect directly. A 2-1/2 in shop-vac hose seats on the SawStop table-saw rear guard port with no reducer.

END A64 mmSawStop table-saw rear guard port (2-1/2 in OD, 64 mm OD)
END B63.5 mm2-1/2 in shop-vac hose (2-1/4 in OD, 2-1/4 in ID)

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

The two ends

End ASawStop table-saw rear guard port (2-1/2 in OD, 64 mm OD)
End B2-1/2 in shop-vac hose (2-1/4 in OD, 2-1/4 in ID)
Fit typemale port into hose cuff
Reducer needednone, direct friction fit

Shop notes

The SawStop over-blade guard port is a 2-1/2 in outer-diameter male stub, and a 2-1/2 in shop-vac hose ID slides over it directly. The cabinet below the saw runs a separate 4 in collector hose, so the two connections are independent.

Running only the guard hose leaves the cabinet uncollected. The 2-1/2 in guard hose and the 4 in cabinet hose do different jobs and both need connecting for clean cutting.