Description Suitable for adding essential oxygen to most aquaponics systems including IBC, bath tubs, barrels, ponds and more. This universal design will easily connect to almost any aquaponic system. Kit comes with complete plumbing to to set up 12 AirStones. Air pump sold separately. Contains 12 Air Stone Blue Ball 50mm 7 Tube Micro 4mm L/m 6 Tube Flex 19mm L/m 3 Elbow 19mm E34 1 Tee 19mm T34 1 Micro Punch/Spanner 12 Micro Joiner 4mm Barb
