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step three:     Select frame type.

BAR THICKNESS AFFECTS AIRFLOW AND QUANTITY OF BARS PER OPENING.  PLEASE ROLLOVER GRILLE TO SEE DRAWINGS FOR EXAMPLES.

EGGCRATE

step ONE:

EC 20

step TWO:

  • THE i FRAME IS USED FOR AN INSET APPLICATION WHERE THE GRILLE IS FLUSH WITH THE SURROUNDING SURFACE.

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  • THE CORE CAN BE FIXED OR REMOVABLE.

  • THE S FRAME RESEMBLES AN F FRAME AND USED FOR AN OVERLAY APPLICATION. HOWEVER AN INTERIOR FLANGE ALLOWS FOR A REMOVABLE CORE. 

  • IF THERE A EXSISTING OPENING AND NO FRAME IS REQUIRED, SELECT THIS OPTION.

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