Aqua One Air Line Black Tubing 4mm 5 metresAqua One 4mm Airline soft tubing is more flexible and therefore remains kink resistant for longer periods of time. It fits the standard air pump outlet of 4mm. Also easily used with gang Values and one way valves.Suitable to be used with:Air operated ornamentsAir driven Sponge filtersAir stones and air curtainsAir driven Egg Tumblers
