Phresh Duct Silencer, 6 in x 18 in
Sound
reducing acoustic foam decreases fan noise by up to 50%. use with fans
in conjunction with carbon filters, light systems & more. Durable
& light weight aluminum body. Compact size is easy to install.
Attach a Phresh Silencer to the intake or exhaust side of an inline fan.
Use on both sides for maximum sound reduction.