The 1390F series security bars feature a grid of bar work that has a maximum of 6” on center spacing. With the variable length sleeve, the 1390F is a great choice where penetration through a wall needs to be secure.
- Security Barred Duct Work with Sleeve
- Horizontal and Vertical Round Security Bars (3/4” Diameter)
- Stich Welded Sleeve Length of 6”, 8”, 10”, 12”, or 18”
- Two Loose Angle Frames Included
- Standard Finish: British White