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  Model 10-MS/15-MS / 20-MS/25-MS - Single/Double Deflection Grille with Lattice Face Plate  
       
 
Standard Features
  • Face Plate: 12 GA C.R.S. with 9/16" square holes on 11/16" centers (Pattern P1)
  • Front Louver Direction: Must Specify
    Parallel to Order Size LONG Dimension (L)
    Parallel to Order Size SHORT Dimension (S)
  • Frame: 20 GA C.R.S. with reinforced welded corners
  • Tamperproof Screws: #10 x 1-1/2" Pinned Flat Head TORX
  • Adjustable Louvers: individually adjustable, single or double deflection roll formed C.R.S. louvers (spaced 1/2" or 3/4" on centers)

Finish

  • Standard: White Powder Coat Finish
  • Optional: Consult factory for other finishes
Optional Features
  • Face Plate Patterns:
    - 13/16" square holes on 1" centers (Pattern P2)
    - 1/4" diameter holes on 3/8" staggered centers (Pattern P8)
    - 5/16" diameter holes on 7/16" staggered centers (Pattern P9)
  • Material Gauges: face plate - 10 GA, 14 GA
  • Material: Stainless Steel, Aluminum, (consult factory for availability)
  • Extended Sleeve: (not shown) specify material/gauge/length
  • Opposed Blade Damper: front or rear operated
  • Adapter: square to round (shipped loose)

Construction

The 10-MS/15-MS features a heavy duty 10 GA steel face plate behind which is installed either one set (10-MS/15-MS) or two sets (20-MS/25-MS) of individually adjustable louvers.

Installation

These models are designed to be installed through the wall and secured through the face with vandal-proof screws or from the back by the locking angles and welded by others to the optional sleeve. See Installation Overview
 
Product
Description		 Performance Data Typical
Specification		 Installation Overview
and
Tamperproof Screws
       
       
Submittals
Model Description Material
Steel Alum Stn Steel
15-MS Single Deflection 1/2" Louver Spacing with Face Plate / Face Screws • • •
15-MS Single Deflection 1/2" Louver Spacing with Face Plate / Sleeve / Lock Angles • • •
25-MS Double Deflection 1/2" Louver Spacing with Face Plate / Face Screws • • •
25-MS Double Deflection 1/2" Louver Spacing with Face Plate / Sleeve / Lock Angles • • •
10-MS Single Deflection 3/4" Louver Spacing with Face Plate / Face Screws • • •
10-MS Single Deflection 3/4" Louver Spacing with Face Plate / Sleeve / Lock Angles • • •
20-MS Double Deflection 3/4" Louver Spacing with Face Plate / Face Screws • • •
20-MS Double Deflection 3/4" Louver Spacing with Face Plate / Sleeve / Lock Angles • • •
Features and Options
Round Hole Patterns
Square / Lattice Hole Patterns
Security / Tamper-Proof Screws
Concrete Anchors / Nelson Studs
FM Rear Auxiliary Frames
Accessories
Model OB Opposed Blade Volume Control Damper
Model SRA Square to Round Duct Adapter