Air-Aqua has 3 diameters available:
110 mm -> 1 meter length = 0.34 m2 permeable surface area
160 mm -> 1 meter length = 0.50 m2 permeable surface area
200 mm -> 1 meter length = 0.63 m2 permeable surface area (only available in black)
The grid tubes are easy to reduce and connect with a flexible coupling, or can be sealed off on one side with an end cap.
