This is a handy fitting from Blackjack (13406) allowing you to add dust collection to a home made router fence.
This is a handy fitting allowing you to add dust collection to a home made router fence. Just fasten in place with a few screws and your in business. The outside diameter is 2-1/2" and accepts all 2-1/2" hose. There is one special feature of this fitting that most are unaware of. The inside diameter is 2-1/4". The popular 2-1/4" shop vacuum hose fits in the end perfectly allowing you to connect a shop vacuum to it.