100mm id connector
thingiverse
Customized version of https://www.thingiverse.com/thing:1246651Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=1246651This is a connector to join 4" Wood River dust control fittings. It is much more affordable than paying $11.99 for the connectors. I would print a bit of the part to make sure of the fit first. You can always scale it up or down to loosen or tighten the fit.
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