Suitable for all GT 125 tube fans
Reduces noise up to 45 dB
Length 39cm
This home made silencer consists of a metal tube with a rock wool shell. It can be slid directly onto the output of all our GT 125 duct fans and reduces the fan noise to less than 45dB.
The damper comes with an air grille that makes it easy to clamp the end in a 121 mm hole in the wall of your grow cabinet or grow room.