Swell Airline Cross Piece fits standard 4mm airline and is suitable for both pond and aquarium use.
This cross piece is ideal for splitting the flow to multiple air stones. In order to adjust air flow you will require the Swell Airline Clamp. The Swell Cross Piece is ideal for larger tanks that have multiple air activated devices. As it's made from good quality materials you can be confident of the best performance.
It comes as a pack of two.