Phresh Duct Silencer 14 inch x 39 inch
Phresh Duct Silencers & Mufflers for Grow Rooms Sound reducing acoustic foam decreases fan noise by up to 50%. Use with fans in conjunction with carbon filters, light systems and more. Durable and 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. Use our convenient Size Calculator to determine which Phresh Filter is right for you! Phresh Size Calculator. For more information visit