Fantech LD4 4" Silencer, For 4"
Circular Ducts, 2" Insulation, with Rubber Gaskets
Easily-fitted silencer for circular ducts, fitted with a connection which is
compatible with a standard spiral duct. The LD effectively reduces noise in the
duct. Two silencers can be used together in installations where noise reduction
is critical. For the most effective noise reduction, the silencer should be
fitted immediately behind a fan or bend.
thickness 2 inches
• Made of galvanized steel