Pleated filter available for Dewalt ROS DW421?

I attach my Dewalt ROS to my Ridgid vac or my dust collector but I hang a cord from the ceiling to support the hose. Much better than wrestling the unsuspended hose. Yep, the ridgid vac is noisy, the dust collector is quiet because it’s on the other side of the wall. Both of these methods work MUCH better than the filter attached to the ROS. I dont think you will gain much from a pleated filter

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

Thanks for the reply. I would have guessed that a pleated filter wouldn’t offer much improvement. Then I read the reviews of the Bosch ROS20VSK random orbit sander. It sounds like it has an internal blower that forces the dust past the filter.
The dust collection on my Dewalt 421 is actually decent. You don’t notice that there is any dust in the air until sunlight shines through the window. That is when I notice all the fine dust hanging in the air. Maybe I’ll try the Bosch. Another option is a 1” pliable hose from woodworkingshop.com. The vacuum hose came highly recommended in wood magazine, however when I went to place the order the part did not show up online. Even then, I would have to listen to the screamin’ banshee shop vac. My dust collector is hooked up to my downdraft table, so it’s not available to hook to the sander.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush