I also have a RX20 for sale. 950.00 plus shipping from Western Washington.
It comes with a big red brittle brush attachment. I'm not sure what it's for. Bonnet cleaning pad driver perhaps. I've never used it. I'm a Rotovac guy. I will test it to ensure everything works before I ship it.
Shipping is not included. I was at Jon don Seattle last week and I couldn't believe my eyes,... they were asking a crazy price for this.