Although this product is simply a hose, connector, and spray head, it works very well. I use it to clean my tubas, where internal cleaning can be difficult because of the weight and size of the tuba. I place my tuba stand in the shower cubicle. Put the tuba on its stand. Attach this product to the shower's water supply. Push the hose head down the lead-pipe and flush the tuba with warm water for several minutes. Stop. Remove a slide from the tuba. Repeat. Repeat.... Much cheaper than paying someone to give the tuba an ultrasonic bath. Useful.