If you like looking out of portholes this is the frame for you.  Add interest and style to any door.

Material: 18 gauge CRS frame.

Construction: Circular - one piece construction with no joints with 90 degree return. Countersunk mounting holes on both sides.

Size: Standard Sizes Shown Below.  Other Sizes Available - minimum size 6", maximum size 60" 
     12"- VLFR12 
     18"- VLFR18 
     24" - VLFR24

Door: For 1-3/4" door.

Fasteners: #8 x 32 Phillips head thru bolts with blank head one side to match finish.

Glass: 3/16" - 1/4" glazing to be ordered separately from Air Louvers Glazing Section. Use fire rated glazing with Warnock Hersey (WHI) or UL classification markings for fire rated applications. Visible light is 1" under rough opening size. Glass size is 1/4" under order size.

Fire-Rated Air Louvers Glazing to fit this vision frame: WS, PYRO, PPF.

Fire-Rating, Testing & Listings: When installed in properly rated and approved door, ratings up to 3 hours can be achieved, depending on the glazing used. See glazing ratings for maximum exposed area. Tested and Listed for UL 10C and Criteria of UBC 7-2 Positive Pressure. See detailed installation instructions.

UBC 7-2 Installation: See detailed installation instructions.