Where can i get this and a price. Gravel cleaner set - This robustly constructed gravel cleaner is fitted with an adjustable elbow so that it can even reach under rock formations or into caves. The gravel cleaner head can be removed and replaced with a cleaning brush for dealing with detritus on rockwork. In either case the detritus is flushed away by attaching a hose, which can then go to waste or to a canister filter for water return. The water flow is adjustable using the inbuilt tap. A feature of the unit are the hinges that can be turned through 45°, so the dirt can be removed even from the most inaccessible areas.