Exchange Window with natural voice transmission mounts into masonry opening or into bullet resistant reinforced stud wall. It can be made in single or multiple lites. The window frame is extruded aluminum and is fastened together with screws. Glazing mate 
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Exterior Service Window fits into rough wall opening and clamps onto wall. Adjustable extruded aluminum frame fits walls 5" to 8.5" thick. Window clamps in place with bolts positioned through back frame into threaded section of front frame. Glaz 
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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) 
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Exchange window with natural voice transmission has hinged panel which swings up for transfer of larger items. Stainless steel shelf with integral deal tray fits below window. This model for interior use only. Note: GLASS IS NOT AVAILABLE for Exchange Win 
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Five inch diameter stainless steel talk thru has offset slots in front and rear to provide natural voice transmission. No. 5-FR Talk Thru is available as interior or exterior model (specify which) and fits glass from .25" to 1.25" thick. 
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Six inch diameter stainless steel talk thru has offset holes in front and rear to provide natural voice transmission. No. 6-FR Talk Thru is available as interior or exterior model (specify which). It fits glass from .25" to 1.875" thick. 
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Bullet resistant window fits into rough wall opening and clamps onto finished wall. Extruded aluminum frame adjusts for walls 5" to 8.5" thick. Window unit clamps into place with bolts positioned through back frame into threaded section of front 
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Nite Window with Pass Hopper fits into wall opening of 16.25" x 32.25". Aluminum frame has clear or dark bronze anodized finish. Unit includes PHE-1 stainless steel Pass Hopper,* weatherstripped for exterior use and our No. 6-FR* stainless steel 
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Compact Nite Window with Deal Tray fits into 16.25" x 24.25" wall opening. Glazing is 1.25" thick acrylic with Level I bullet resistant protection and aluminum frame in clear or dark bronze anodized finish. Window unit has No. 6-FR* stainle 
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