The cooling tower size and shape will decide which kinds of fills will be used. Round cooling towers use the fill media with a round shape, and square cooling towers use a square or rectangular shape. There is another special shape of the fill, such as the trapezoid shape fill, which can be used in a square cooling tower too.
About the cooling tower fill thickness, It ranges from 0.27mm to 0.5mm. Some people thought the thicker, the better. Considering the tower’s size and installation method, we advise using a suitable thickness. If the width is less than 1.22 meters, we advise using the thickness less than 0.38mm; if the thickness is more than 1.22 meters, such as 1.52 meters, we advise the thickness should be more than 0.38mm. It is like a paper. If the width is very large, the thickness should be thick enough to bear the weight and strength.