445-SW Stationary, Non-Drainable, Louver Fire & Smoke Dampers It fits most standard vents

It fits most standard vents and is easy to install

This versatile frame ensures secure mounting and provides easy access to the plenum

Accepts 6" to 14" unique tab collar (6400 series) or 6" to 16" unique snap-in collar (5400 and 5400PP series)

and AMCA Standard 500-L

Ceiling Lay-In Plaque Diffuser 12X12 with Insulation - DPL (DPL)

445-SW Stationary, Non-Drainable, Louver Fire & Smoke Dampers It fits most standard vents445 SW stationary, non drainable, louver MADE TO ORDER Lead Time 2 3 weeks Custom Sizes Available Click here for Submittal The 445 SW stationary, non drainable, louver utilizes a uniquely designed weather control blade to be used in intake and exhaust applications that do not require high water penetration protection. The445 SW model is available with a variety of flanged, sleeved, and screen options and is an AMCA certified louver. Specifications: