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Manufacturer's Product Description

System 904 (T) This system offers an economical solution to thermally improved ribbon glazing applications. System 904 is provided in stock lengths for fabrication in the field. Mullions are captured in head and sill can receptors without need for mechanical fasteners. Intermediate horizontals join mullions utilizing shear block construction. System 904 is available in butt-glazed or captured mullion versions and accommodates 3/4", 7/8", 5/16", 1", and 1 1/6" glazing.

Activity with 4" Quick Set for 3/4" to 1 1/16" glazing

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