Here’s what I found that works across both my table saw and miter station.
P1059-150 - www.fernco.com have worked great (1.5 x1.5”) they are flexible and measured as an inside diameter, and fit very snug to the exhaust port (over the top) I used a little oil to help slide it on
found it at Lowe’s
for some reason I can’t post a picture
Flexible couplings