Part # N666 6 Inch Round Heavy Stainless Steel Level 3 Bullet Resistant Speak-Thru
Made of Heavy Stainless Steel With Brushed Finish Louvers Spaced to Deflect Projectiles, Level 3 Bullet Resistance (.44 Magnum) designed for use with bullet resistant glass, acrylic or polycarbonate, the concentric circular louvers are spaced to deflect projectiles entering the cavity between the interior and exterior surfaces without interfering with conversation. Accommodates glazing thicknesses from 1-3/16 to 1-7/8 inch (30 to 48 millimeter). Optional spacer rings are available for use with glazing materials less than 1-3/16 inch (30 millimeter) thick. This unit has a protection rating of Level 3 (.44 Magnum).