Decrease the noise of your inline fan and exiting duct air by using Phat Muffler. It is best known to decrease more noise than any other muffler available on the market. 

In addition, the Glass Pack Silencer will not destroy the foam products. For best noise reduction results, it's suggested to use a Phat Muffler on both your fan's intake and departure.

Features:

• It ensures 85% Noise Reduction Coefficient (NRC)- top in the market.

• The lightweight aluminum construction makes it easy to hang with no rust.

• The 45-degree inner taper before flanges helps in decreasing noise at a greater level.

• Provide maximum free flow air movement.

Specifications:

• SKU/Model Number: HF-IGSPM3512 

• Brand: Phat

• Dimensions: 12" * 35"

• Sizes Available: 4" to 12"