MSSG – Medium Security Screen Grille

MSSG – Medium Security Screen Grille
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MSSG – Medium Security Screen Grille


The Medium Security Screen Grille (MSSG) features all-welded construction with 10 GA, 3/8 in. x 3/8 in. wire mesh secured to a 10 GA steel frame. Multiple construction options allow the MSSG to be customized to meet installation requirements.

Typical Applications
Security grilles reduce unwanted access to ductwork in spaces where supervision is minimal and vandalism or misuse is a risk. Such areas include: correctional facilities, psychiatric hospitals, rest stops, park facilities, schools and sports venues. Medium security screen grilles feature all-welded construction and integral wall sleeves for medium security applications.Construction Options

  • Material
    • Steel
    • Stainless steel
    • All aluminum (minimum security)
  • Size
    • Minimum: 6 in. x 6 in.
    • Maximum: 30 in. x 30 in.
  • Options
    • Dampers
    • Transfer grille construction
    • Various barrier bar styles
    • Various fastening methods