With pieces made of PVC, the so-called PVC fittings, piping of aquariums or entire systems can be realized without any problems. The different fittings are matched to each other and therefore fit together perfectly. In addition to elbows, pipes and bends, there are various screw joints and threaded pieces available for the permanent connection of pumps and filters. The individual parts are permanently connected to each other with PVC adhesive.PVC ball valve CHThis stopcock is equipped with adhesive sockets on both sides and can also be removed using the screw connections. Due to the ball technology the flow rate can be adjusted very precisely. Please note: the thread of the ball valve can not be combined with threaded fittings and differs from manufacturer to manufacturer.available in the following sizes:16 mm20 mm25 mm32 mm40 mm40 mm50 mm63 mm