All risk-resistant grilles feature heavy-duty, all-welded construction and thread-resistant cores, ideal for high security applications. Multiple core and mounting options allow flexibility for various installations.

MSRRP maximum security risk-resistant grilles are typically installed in sidewalls and feature small holes in a perforated face to provide risk-resistant air distribution. The MSRRP is an economical option that provides higher air volumes with less pressure drop than the MSRRG.