We want to pass on our savings to our customers, so we've lowered the price of this item. However, since our price is now below the manufacturer's suggested retail price, we are restricted by the manufacturer from showing the price right away.
This adapter easily connected to my new Bosch 5" Electronic Variable Speed Random Orbit Sander/Polisher and my Fein vacuum hose easily connects with no issues at all. This is the best performing Bosch connection in what is now my third version of the 5" RAS.
I have a really old (and worn out) Bosch orbital sander and a much newer model also from Bosch (that matches the selection criteria for this adapter). My dust collection hose from the old sander with a round port works fine with the adaptor for the new sander with the slotted port. This provides a vast improvement in keeping my shop dust free.