Light Trap Fan Cover

Provides excellent light deprivation on ventilation fans and air intake vents. Units provide a 1,900,000:1 light reduction ratio through the vanes. Air pressure drop through the plastic vanes is minimal. Sturdy 16 gauge pre-galvanized steel box frame, with removable front retainer plate for service. Frame designed to mount onto existing and new ventilation fans of any size. Can be manufactured to fit fan enclosures or intake vents of any size. Standard sizes readily available and custom sizing is in one inch width increments, and up to 10’ tall