Calling ALL HARMAN owners...

yeah, replacement filters. Ours got a tear in it when the Mr was using my air compressor to blow it off.

I did find some reasonable priced from Midland Hardware on the internet and they did not charge a fortune for shipping.

Didn't know they made and "ash vac". I've been using a Rigid 12 gallon, 5 hp "shop" type vac for six years with no problem. It sits outside on the patio and is plumbed through the wall near my stove. I have about 15' of flex hose attached to the wall fitting so I can vacuum the whole room. I start & stop it using a wireless remote controlled outlet. Since I've been burning Isabella pellets (mostly red pine) I have so little ash that I can go the whole season without banging out the filter.