Stainless Steel Talk Thru Patented
Five inch diameter cast stainless steel talk thru with vertical louvers provides natural voice transmission. No. 5-D Talk Thru is available for interior or exterior use (specify which) and fits glazing from .25˝ to 1.875˝ thick. Optional security screws and contraband screen are available. Indicate glass thickness when ordering.
Construction: Cast stainless steel
Hole size: 4˝ diameter
Level III bullet resistant