Getting to the nitty-gritty of hot water extraction, I own both a Rug Doctor R-40 Which includes both the original hoses and the Head with the vibrating brush, as well as a Maintenance Research Company shampooer, both of them appear to be used in the rental market at one point, i’ll give you a photo of the maintenance research company machine but I will have to wait for the photo of the Rug Doctor R–40 As I’m currently waiting for a gasket that seals the motor intake to the motor mount itself, Both of these machines use a 7.2 inch motor
