Abstract: A fitting and a coupled bag and fitting. The coupled bag and fitting is provided wherein (a) the bag's opening is attached to the lower side of the fitting; (b) the fitting designed to easily connect and disconnect, the bag and fitting, on and out of a dispenser or a dispensers mounting-shoe; and (c) the fitting has at least one passage that enables material to pass from the dispenser into the bag. Further embodiments can also contain a mechanism for cleaning leftover from the dispensers outlet, an identification means enable recognizing the existence of the bag and bag's characters.