extreme weather grilleThe HPG3845 extreme weather grille offers designers a ventilation solution for their near-absolute life safety requirements, the company said. Tested to FEMA 361, this severe-duty grille can be mounted internally, externally, or in conjunction with other louvers. Rated for 266-psf wind load and tested to withstand a 15-pound 2x4 missile impact at 100 mph, the HPG3845 grille provides certified performance that complements safe room construction and meets or exceeds building envelope protection requirements.


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