Fire rated fusible link louver kits - Metal louver kits w/ fusible link, for fire-rated doors only, for 1 3/4" thick doors.
The maximum size louver anyone can put into a fire rated door is 24" x 24". The fire label will be considered "void" should a louver larger then 24" x 24" be installed. Other restrictions do apply.
The product was exactly what I expected. Great info on the page. ... read more
- John M., TX