- Supply / Return Perforated Face Security Grille
- 304 Stainless Steel Construction (Optional 316 Stainless Steel)
- 5/16″ Diameter Holes on 7/16″ Staggered Centers
- Stich Wleded Sleeve Length of 6″, 8″, 10″ or 12″
- Available with Rear or Front Operated Damper
- Optional Angled Frame, Anchor Bars, Round Security Bars
- Standard Finish is #3 Satin Polish