• Products and Solutions
    • Grilles & Registers
      • Supply, Steel
      • Supply, Aluminum
      • Return, Steel
      • Return, Aluminum
      • Curved Blade, Aluminum (1, 2, 3 or 4-way)
      • Heavy Duty, Steel, Supply
      • Heavy Duty, Steel, Return
      • Grid Core Return
      • Transfer and Door Grilles
      • Perforated Return Grilles
      • AVF Versaflex
      • G-Series
      • Return Filter Grilles
      • Supply Aluminum, Aerovane
      • Grid Core Return 45-Degree Deflection
    • Square/Round Diffusers
      • Stepdown 3-Cone
      • Stepdown 2-Cone
      • Architectural Plaque Diffuser
      • M-Series Louvered Face-Square Neck
      • Agitair® RC Series
      • Modular Core Diffuser
      • Concentric Supply Return
      • Round Diffuser, 3-Cone
      • Round Diffuser, 4-Cone
      • Industrial Round Diffuser
      • Fire Rated Series
      • Architectural Swirl Face
      • M-Series Louvered Face-Round Neck
      • Round Architectural Plaque Diffuser
    • Perforated Diffusers
      • Supply, Adjustable Curved Blade
      • Supply Face Mounted Deflectors
      • Supply, Modular Core
      • Return, Perf Panel Only
      • Return Diffuser
    • Linear/Slot Diffusers
      • 4000 Series Linear Grilles
      • Agitair® Stripline® Diffusers
      • 6000 Series Slot Diffusers
      • AIR-TRAC Architectural Linear Diffuser
    • Plenum Slots
      • Supply, Single Vane
      • Supply, Modulinear
      • High Capacity Plenum Slot
      • Return Slot Diffuser
      • High Induction Series
      • Supply, Fixed Vane
    • Security Grilles
      • Perforated Supply
      • Transfer Grille, Perforated Pattern
      • Louvered Face Diffuser With Lattice Face Plate
      • Bar Grille, Steel
      • Bar Grille, Aluminum
      • Lattice Face Plate, Steel
      • Lattice Face Plate, Aluminum
      • Security Duct Bars With Sleeve
      • Security Duct Bars With Frame
      • Suicide Deterrent Security Grille
      • Maximum Security Lattice Face With Mesh Screen
    • Critical Environment
      • Radial Flow, Fixed
      • Radial Flow, Adjustable
      • OR Linear Curtain, V-Slot
      • Laminar Flow, Tensor™
      • ISOTEK
      • Laminar Terminal Diffusers, LTD
    • Specialty Products
      • Stainless Steel Supply Grilles
      • Stainless Steel Return Grilles
      • Industrial Supply Grilles, Pole-Operated Blades
      • GJ Jet-Flo®
      • Roto-Jet® Drum Grilles
      • Electronically Controlled VAV Diffuser
      • Roto-Jet® Spiral Duct Drum Grilles
      • Discus Series Spot Diffusers
      • Discus Series Supply Grilles
      • Discus Series Air Foil Round Supply Grilles
      • Discus Series Industrial Round Supply Grilles
      • Thermal VAV Diffusers
      • Heavy Duty Airfoil Grilles
      • Constant Flow Regulator
      • Spiral Duct Series
    • Underfloor Products
      • UnderFloor Rounds
    • Accessories
      • Round Dampers
      • Grids, Extractors, Turning Vanes
      • Square to Round Adapters
      • Adapter Plaster Frames
      • HEPA Air Filter
      • Plaster Frame
      • Square/Rectangular Dampers, Steel
      • Square/Rectangular Dampers, Aluminum
      • Return Hood
    • Air Handling Coils
      • Air Handling Coils
    • Terminal Units
      • Single Duct Terminal Unit
      • Dual Duct Terminal Unit
      • Single Duct Round Terminal Unit
      • Dual Single Duct Terminal Unit
      • Laboratory Exhaust Valve
      • Bypass Terminal Unit
      • Low Profile Fan Powered Constant Terminal Unit
      • Low Profile Fan Powered Variable Terminal Unit
      • Fan Powered Series Terminal Unit
      • Fan Powered Parallel Terminal Unit
    • Displacement Diffusers
      • Semi-circular, 180°
      • Rectangular, Flush Mount
      • Rectangular, Stair Riser or Surface Mount
      • Curved, Corner Mount
      • Rectangular, Flush or Wall Mount
      • Semi-Circular, Wall or Surface Mount
      • Circular, 360°
  • Services and Support
    • Training
    • Webinars
    • GRD Products Webinars
  • Resources
    • Engineering Resources
    • Installation Manuals
    • Revit
    • Product Catalog
    • Installation Videos
  • Insights
  • Find a Rep
Rep Login
  • Products and Solutions
    • Grilles & Registers
      • Supply, Steel
      • Supply, Aluminum
      • Return, Steel
      • Return, Aluminum
      • Curved Blade, Aluminum (1, 2, 3 or 4-way)
      • Heavy Duty, Steel, Supply
      • Heavy Duty, Steel, Return
      • Grid Core Return
      • Transfer and Door Grilles
      • Perforated Return Grilles
      • AVF Versaflex
      • G-Series
      • Return Filter Grilles
      • Supply Aluminum, Aerovane
      • Grid Core Return 45-Degree Deflection
    • Square/Round Diffusers
      • Stepdown 3-Cone
      • Stepdown 2-Cone
      • Architectural Plaque Diffuser
      • M-Series Louvered Face-Square Neck
      • Agitair® RC Series
      • Modular Core Diffuser
      • Concentric Supply Return
      • Round Diffuser, 3-Cone
      • Round Diffuser, 4-Cone
      • Industrial Round Diffuser
      • Fire Rated Series
      • Architectural Swirl Face
      • M-Series Louvered Face-Round Neck
      • Round Architectural Plaque Diffuser
    • Perforated Diffusers
      • Supply, Adjustable Curved Blade
      • Supply Face Mounted Deflectors
      • Supply, Modular Core
      • Return, Perf Panel Only
      • Return Diffuser
    • Linear/Slot Diffusers
      • 4000 Series Linear Grilles
      • Agitair® Stripline® Diffusers
      • 6000 Series Slot Diffusers
      • AIR-TRAC Architectural Linear Diffuser
    • Plenum Slots
      • Supply, Single Vane
      • Supply, Modulinear
      • High Capacity Plenum Slot
      • Return Slot Diffuser
      • High Induction Series
      • Supply, Fixed Vane
    • Security Grilles
      • Perforated Supply
      • Transfer Grille, Perforated Pattern
      • Louvered Face Diffuser With Lattice Face Plate
      • Bar Grille, Steel
      • Bar Grille, Aluminum
      • Lattice Face Plate, Steel
      • Lattice Face Plate, Aluminum
      • Security Duct Bars With Sleeve
      • Security Duct Bars With Frame
      • Suicide Deterrent Security Grille
      • Maximum Security Lattice Face With Mesh Screen
    • Critical Environment
      • Radial Flow, Fixed
      • Radial Flow, Adjustable
      • OR Linear Curtain, V-Slot
      • Laminar Flow, Tensor™
      • ISOTEK
      • Laminar Terminal Diffusers, LTD
    • Specialty Products
      • Stainless Steel Supply Grilles
      • Stainless Steel Return Grilles
      • Industrial Supply Grilles, Pole-Operated Blades
      • GJ Jet-Flo®
      • Roto-Jet® Drum Grilles
      • Electronically Controlled VAV Diffuser
      • Roto-Jet® Spiral Duct Drum Grilles
      • Discus Series Spot Diffusers
      • Discus Series Supply Grilles
      • Discus Series Air Foil Round Supply Grilles
      • Discus Series Industrial Round Supply Grilles
      • Thermal VAV Diffusers
      • Heavy Duty Airfoil Grilles
      • Constant Flow Regulator
      • Spiral Duct Series
    • Underfloor Products
      • UnderFloor Rounds
    • Accessories
      • Round Dampers
      • Grids, Extractors, Turning Vanes
      • Square to Round Adapters
      • Adapter Plaster Frames
      • HEPA Air Filter
      • Plaster Frame
      • Square/Rectangular Dampers, Steel
      • Square/Rectangular Dampers, Aluminum
      • Return Hood
    • Air Handling Coils
      • Air Handling Coils
    • Terminal Units
      • Single Duct Terminal Unit
      • Dual Duct Terminal Unit
      • Single Duct Round Terminal Unit
      • Dual Single Duct Terminal Unit
      • Laboratory Exhaust Valve
      • Bypass Terminal Unit
      • Low Profile Fan Powered Constant Terminal Unit
      • Low Profile Fan Powered Variable Terminal Unit
      • Fan Powered Series Terminal Unit
      • Fan Powered Parallel Terminal Unit
    • Displacement Diffusers
      • Semi-circular, 180°
      • Rectangular, Flush Mount
      • Rectangular, Stair Riser or Surface Mount
      • Curved, Corner Mount
      • Rectangular, Flush or Wall Mount
      • Semi-Circular, Wall or Surface Mount
      • Circular, 360°
  • Services and Support
    • Training
    • Webinars
    • GRD Products Webinars
  • Resources
    • Engineering Resources
    • Installation Manuals
    • Revit
    • Product Catalog
    • Installation Videos
  • Insights
  • Find a Rep
Search
Search Rep Login
  1. Home
  2. Products and Solutions
  3. Square/Round Diffusers
  4. Stepdown 2-Cone
  5. S2300 / S2300A 2-Cone Diffuser, Steel
Product Image_a2300
A2300 Front View
A2300 ISO View 1
A2300 ISO View 2
A2300 ISO View 4
A2300 Left View
A2300 Right View
A2300 Top View
A2300 Back View
A2300 Bottom View
  • Thumb Image_a2300
  • Thumb Front
  • Thumb ISO 1
  • Thumb ISO 2
  • Thumb ISO 4
  • Thumb Left
  • Thumb Right
  • Thumb Top
  • Thumb Back
  • Thumb Bottom

S2300 / S2300A 2-Cone Diffuser, Steel

Square/ Round Diffusers

The S2300 and S2300A are steel square ceiling diffusers that deliver supply air in a true 360° pattern with low pressure drop. The uniform, nearly horizontal jet from the outer cone maintains effective room air distribution even when the air volume varies over a considerable range. All sizes have three concentric cones, giving a uniform appearance where different neck sizes are used in the same area. The S2300 features a fixed horizontal discharge pattern, while the S2300A adds adjustable vanes to vary the discharge pattern from horizontal to vertical.

  • Delivers supply air in a true 360° air pattern
  • Designed to protect ceilings from streaking and smudging
  • Excellent for variable air volume (VAV) systems
  • 3-cone concentric design provides uniformity and enhances appearance
  • S2300A: screwdriver-adjustable vanes for vertical-to-horizontal discharge
  • Quick inner cone removal with hex key speeds installation
  • Heavy gauge steel construction
Back to Top

S2300 / S2300A 2-Cone Diffuser, Steel

  • Product Application
  • Features
  • Benefits
  • Product Documentation
  • Related Products

    Product Application

    Are you looking for a high-performance steel ceiling diffuser with anti-smudge design? The S2300 and S2300A prevent smudging and streaking through a 360° discharge pattern that keeps airflow away from ceiling surfaces. The S2300 features a fixed horizontal discharge pattern, while the S2300A adds fully adjustable vanes — controllable with a standard screwdriver — that vary the discharge from horizontal to vertical without removing the inner cone. Both models are excellent for variable air volume systems and best-suited for large open areas such as airport terminals and open-plan offices.
    Product Application

    Features

    • Heavy gauge steel construction
    • Delivers supply air in a true 360° air pattern
    • Designed to protect ceilings from streaking and smudging
    • 3 concentric die-stamped cones in all sizes for uniform appearance
    • All cones are one-piece construction with smooth, clean surfaces and no corner joints
    • Available in 12×12, 20×20, and 24×24 ceiling module face sizes
    • S2300A: adjustable pattern controller vanes vary discharge from vertical to horizontal (screwdriver adjustable, no cone removal required)
    • Quick inner cone removal with hex key speeds installation and damper access
    • Excellent for variable volume systems — nearly horizontal jet maintains effective distribution across a wide airflow range
    • Optional accessories: butterfly damper, opposed blade damper, combination damper/equalizing grid, radial sliding blade damper, equalizing grid, sectorizing baffles
    • Standard finish: White #26
    • Optional insulation blanket (IB) with R-6 rating available for 24×24 full-face models (S2300)

    Benefits

    Efficient Design
    Efficient Design

    The 3-cone concentric steel design delivers a uniform 360° air discharge pattern, ensuring optimum ventilation and consistent comfort throughout your facility.

    Exceeds Requirements
    Exceeds Requirements

    The nearly horizontal jet from the outer cone maintains effective room air distribution even as air volume varies over a wide range — making the S2300 and S2300A ideal for variable air volume (VAV) systems.

    Unparalleled Performance
    Unparalleled Performance

    Quick inner cone removal with a hex key speeds installation and damper access. The S2300A allows screwdriver adjustment of the optional damper without removing the inner cone.

    Technical Resources

    Document Name
    Description
    Language
    Resource Type

    Submittal

    S2300_V3 (English)

    S2300 Square Ceiling Diffusers, Steel, High Performance — Submittal Drawing

    English Submittal
    VIEW

    Submittal

    S2300A_V2 (English)

    S2300A Square Ceiling Diffusers, Steel, Adjustable, High Performance — Submittal Drawing

    English Submittal
    VIEW

    Product Dimensions

    CD_2300_DIM4_V1 (English)

    S2300 / A2300 Series — Product Dimensions

    English Product Dimensions
    VIEW

    Specifications

    CD_2300_SPC4_V2 (English)

    S2300(A) / A2300(A) Series — Specifications

    English Specifications
    VIEW
    No resource found for selected filter

    Back

    Next

    Related Products

    RBN Neck Mounted Butterfly Damper

    RBN Neck Mounted Butterfly Damper

    RBD Duct Mounted Butterfly Damper

    RBD Duct Mounted Butterfly Damper

    RON Neck Mounted Opposed Blade Damper

    RON Neck Mounted Opposed Blade Damper

    ROD Duct Mounted Opposed Blade Damper

    ROD Duct Mounted Opposed Blade Damper

    RRN Neck Mounted Radial Fan Blade Damper

    RRN Neck Mounted Radial Fan Blade Damper

    RRD Duct Mounted Radial Fan Blade Damper

    RRD Duct Mounted Radial Fan Blade Damper

    A1200 2-Cone Diffuser, Fixed, Aluminum

    A1200 2-Cone Diffuser, Fixed, Aluminum

    A1200A 2-Cone Diffuser, Adjustable, Aluminum

    A1200A 2-Cone Diffuser, Adjustable, Aluminum

    S1200A 2-Cone Diffuser, Adjustable, Steel

    S1200A 2-Cone Diffuser, Adjustable, Steel

    Contact Us
    Find a Rep
    • Grilles & Registers
    • Square/Round Diffusers
    • Perforated Diffusers
    • Linear/Slot Diffusers
    • Plenum Slots
    • Security Grilles
    • Critical Environment
    • Specialty Products
    • UnderFloor Products
    • Accessories
    • Air Handling Coils
    • Terminal Units
    • Displacement Diffusers
    Products and Solutions
    • Grilles & Registers
    • Square/Round Diffusers
    • Perforated Diffusers
    • Linear/Slot Diffusers
    • Plenum Slots
    • Security Grilles
    • Critical Environment
    • Specialty Products
    • UnderFloor Products
    • Accessories
    • Air Handling Coils
    • Terminal Units
    • Displacement Diffusers
    • Training
    • Webinars
    Services and Support
    • Training
    • Webinars
    • Engineering Resources
    • Installation Manuals
    • Revit
    • Product Catalog
    Resources
    • Engineering Resources
    • Installation Manuals
    • Revit
    • Product Catalog
    Connect With Us
    • Twitter X logo
    • Facebook logo
    • LinkedIn logo
    © 2025 TuttleandBailey. All Rights Reserved.
    • Terms and Conditions of Sale
    • Privacy Notice
    • California Notice at Collection
    • Ethics
    • Terms of use
    • Purchase Terms