Zach and the team down in Houston at Dustless Blasting are amazing !! They answered every question I had and made sure I tested the equipment and was 100% comfortable. I bought the DB 500 mobile XL Also a plus is that they have a guy that just sits in the office to answer your questions everyday,, ha, ha Mike...you da man !! Dustless Blasting doesnt just care about the sale.. they are there for you everyday after you buy your equipment. The support is amazing and that makes all the difference to me as a business owner for 35 years. The equipment is amazing, its easy to use and you have Dustless branding on your side. THANK YOU !!!!!!