Fantech LD 6 - Silencer, 6" Duct
The Fantech LD6 Silencer is exclusively designed for use in circular ducts.
Reduce noise with the Fantech LD6 Silencer for 6-inch circular ducts. It comes with a connection that lets you use it with a spiral duct. This silencer should be installed just behind the fan or bend for reliable performance . You can use two silencers if noise reduction is critical. It has 2-inch thick insulation.