The new style of acoustic foam, sound cancelling silencers. Pre-fitted with 150mm flanges on either end for easy Fan / Ducting connection. Both the 150mm Compact Acoustic Silencer and the 150mm Slimline Acoustic Silencer have very similar performance but vary in shape to accommodate the growers spacial limitations. Dimensions: Length: 425 mm Outside Diameter: 255 mm Flange Size: 150 mm
