You can buy mobile car wash equipment from Detail King and eBay. Whereas Detail King sells from its own inventory, eBay helps you get in touch with a seller that has mobile car wash equipment.
You can find individual equipment or custom made car wash trailers on either website. Detail King also offers free training videos showing how to use their products. Similarly, they have two- and three-day auto detailing training classes by certified trainers.
You can buy mobile car wash equipment on eBay either at a fixed price via the Buy It Now feature or by bidding on auctions. EBay allows customers to leave public feedback about sellers. As such, you can see how trustworthy a seller is by checking their feedback score.