Diffusers

Price Diffusers deliver high-performance air distribution with architectural flexibility and quiet operation. Designed for a wide range of interior spaces, they improve indoor air quality and occupant comfort while integrating seamlessly into ceilings and other building elements. Their durability and performance make them a dependable choice for commercial applications.

Learn about Grilles, Registers and Diffusers

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  • Square Plaque Diffuser

    SPD - Square Plaque Diffuser

    SPD, ASPD, SPD-FR, SPDHI, SPDLT, SPJD

    Modern square plaque diffuser offering even air distribution and low-noise HVAC operation.

  • Square Cone Diffuser

    SCD - Square Cone Diffuser

    SCD, ASCD, SCDA, ASCDA, SCD-FR, SCDA-FR

    Square cone diffuser designed for balanced air diffusion and architectural integration.

     

  • Modular Louvered Face Diffuser

    SMD/AMD - Modular Louvered Face Diffuser

    SMD, AMD, AMDE, SMDA, AMDA, SMX, AMX, AMEX, SMDP, MSD, LCMD, SMD-FR, SMDA-FR, SMX-FR

    Modular steel diffuser providing directional airflow control for high-performance HVAC designs.

  • Custom Flow Architectural Slot Diffuser

    CF - Custom Flow Architectural Slot Diffuser

    CFT, CF4, CFP, CFPC, CFC

    Custom flow diffuser designed for tailored air patterns and optimal comfort in HVAC air distribution.

     

  • Linear Slot Diffuser

    SDS - Linear Slot Diffuser

    SDS, SDR, SDSC, SDRC, SDS4, SDA, SDB, SDBC

    Linear slot diffuser offering adjustable air patterns and sleek appearance for ceiling HVAC systems.

  • High Capacity Drum Louvers

    HCD - High Capacity Drum Louvers

    HCD, DLSS, DBH

    Engineered for long air throw and precise directional control, featuring rotatable drums and durable extruded aluminum blades.

  • Linear Bar Grille

    LBP - Linear Bar Grille

    LBP

    Extruded aluminum linear bar grille for supply or return applications. Clean architectural lines support continuous, perimeter, wall, ceiling, or floor installations.

  • Heavy Duty Linear Bar Grille

    LBPH - Heavy Duty Linear Bar Grille

    LBPH

    Designed for sidewall, sill, ceiling, and floor installations, extruded aluminum linear bar grilles combine architectural
    appeal with performance and versatility.

  • Heavy Duty Linear Bar Grille Mandrel

    LBMH - Heavy Duty Linear Bar Grille Mandrel

    LBMH, LBM

    Heavy-duty mandrel tube linear bar grille engineered for durability in high-traffic HVAC applications.

  • T-Bar Diffuser, Ice-Tong Pattern Controller

    TBD3 - T-Bar Diffuser, Ice-Tong Pattern Controller

    TBD3, TBD3-FR

    T-bar diffuser with Ice-Tong pattern controller featuring a coated steel casing, extruded aluminum center tee, and high-induction airflow control for thermal comfort.

  • Volume Control Damper

    VCR8 - Volume Control Damper

    VCR8, VCR8SS, VCR8E, VCR8ESS, VCR8EC

    The VCR8 round butterfly style damper provides airflow adjustment at the diffuser neck.

  • Round Cone Diffuser

    RCD - Round Cone Diffuser

    RCD, ARCD, RCDA, RCDE

    Round Cone Diffusers (RCD) combine the visual appeal of a round cone design with maximum air diffusion
    efficiency.

  • Adjustable Modular Core Directional Diffuser

    AMCD - Adjustable Modular Core Directional Diffuser

    AMCD

    The modular core directional diffuser (AMCD) supplies large volumes of air at low sound levels and
    pressure drops.

  • Aluminum Plaster Frame

    AMF - Aluminum Plaster Frame

    AMF

    Plaster frames allow for easy installation of square ceiling or t-bar
    style slot diffusers into drywall ceilings.

  • Mounting Panel for Square Ceiling Diffusers

    CCSQ - Mounting Panel for Square Ceiling Diffusers

    CCSQ

    Special anti-smudge frame for square diffusers, the Price CCSQ neatly drops the diffusers 11 /16 in. [27] below the ceiling to enhance the ceiling effect and reduce smudging.

  • Duct Ring Flange / Duct Plaster Ring

    DRF / DPR - Duct Ring Flange / Duct Plaster Ring

    DRF, DRP

    Price offers a variety of plaster rings to suit most applications.

  • Linear Diffusers - Low Temperature

    LDLT - Linear Diffusers - Low Temperature

    LDLT, ALDLT

    The Linear Diffuser Low Temperature (LDLT) features insulated construction to prevent condensation.

  • Linear Vane Diffuser

    LV - Linear Vane Diffuser

    LV1, LV2

    The Linear Vane Diffuser (LV) features a removable louvered core with fixed 1 or 2-way airflow and is suitable for
    installation in ceilings and sidewalls.

  • Maximum Security Risk Resistant Ceiling Diffuser

    MSRRCD - Maximum Security Risk Resistant Ceiling Diffuser

    MSRRCD

    All risk resistant grilles feature heavy-duty, all-welded construction and thread resistant cores, ideal for high
    security applications.

     

  • Air Nozzle Diffuser

    AND - Air Nozzle Diffuser

    AND

    Available in a variety of sizes and core styles, air nozzles are well suited to architectural applications that require
    long throws.

  • Nozzle Diffuser

    ND - Nozzle Diffuser

    ND

    Available in a variety of sizes and with multiple mounting options, the Nozzle Diffuser (ND) is well suited to
    industrial and commercial applications that require long throws and directional control.

  • Equalizing Grid

    EG - Equalizing Grid

    EG, EGL, EGS

    Equalizing Grids (EG) equalize airflow into rectangular or round diffuser necks with minimal noise and turbulence.

  • Perforated Return Diffuser

    PDDR - Perforated Return Diffuser

    PDDR, PDDR-FR, PDDRE-FR

    The Perforated Return Diffuser (PDDR) is designed to match the PDF, PDN, PDC, PDSP and PDMC perforated
    supply diffusers in appearance and detail.

  • Perforated Face Supply Diffuser, Face Mounted Controllers

    PDF - Perforated Face Supply Diffuser, Face Mounted Controllers

    PDF, PDF-FR, PDFE-FR

    The perforated supply diffuser with face mounted pattern controllers (PDF) is extremely versatile, available in a wide variety of sizes with a full selection of frame and mounting styles.

  • Architectural Perforated Diffuser, Return

    PDR - Architectural Perforated Diffuser, Return

    PDR

    The architectural perforated face diffuser features an extruded aluminum border and mounting frame that match
    seamlessly for a flush mount that blends with most ceiling tiles.

  • Architectural Perforated Diffuser, Supply

    PDS - Architectural Perforated Diffuser, Supply

    PDS

    The architectural perforated face diffuser features an extruded aluminum border and mounting frame that match
    seamlessly for a flush mount that blends with most ceiling tiles.

  • Perforated Face Return Module

    PFRF - Perforated Face Return Module

    PFRF, PFRFE, APFRF, APFFRFE

    The Perforated Face Return Module (PFRF) is an economical, high capacity return inlet. These perforated ceiling
    panels are used as non-ducted return inlets for T-bar lay-in ceilings.

  • Plaster Ring for Round Diffusers

    PR - Plaster Ring for Round Diffusers

    PR

    Specify model PR ring for round diffusers with standard outer cone.

  • Round Plaque Diffuser

    RPD - Round Plaque Diffuser

    RPD

    Round Plaque Diffusers (RPD) provide a balance between engineering and architectural needs, with a flush
    appearance and superior VAV performance in both ceiling and exposed duct applications.

  • Radial Vane Diffuser

    RVD - Radial Vane Diffuser

    RVD, RVDAL, RVDSS, RVDLT

    The Radial Vane Diffuser (RVD) features fixed radial slots that provide a high induction vortex airflow that discharges
    horizontally from the face of the diffuser.

  • Radial Twist Diffusers

    RTD - Radial Twist Diffusers

    RTD

    The Radial Twist Diffuser (RTD) is the quietest and most economical high-induction radial twist diffuser on the market.

  • Sectorizing Baffle

    SB - Sectorizing Baffle

    SB

    The sectorizing baffle is a field installed accessory used to blank-off a portion of the inlet to create a special irregular air pattern.

  • Modular Core Directional Diffuser

    SMCD - Modular Core Directional Diffuser

    SMCD

    The modular core directional diffuser (SMCD) supplies large volumes of air at low sound levels and
    pressure drops.

  • Steel Plaster Frame

    SPF - Steel Plaster Frame

    SPF

    Plaster frames allow for easy installation of square ceiling or t-bar style slot diffusers into drywall ceilings.

  • T-Bar Diffuser, Curved Pattern Controller

    TBD2 - T-Bar Diffuser, Curved Pattern Controller

    TBD2

    T-bar diffusers consists of a coated steel casing with extruded aluminum center tee (minimum 2 slot) and pattern
    controllers.

  • T-Bar Diffuser, Blade Pattern Controller

    TBD4 - T-Bar Diffuser, Blade Pattern Controller

    TBD4, TBD4-FR

    T-bar diffusers consists of a coated steel casing with extruded aluminum center tee (minimum 2 slot) and pattern
    controllers.

  • T-Bar Diffuser, Fixed pattern

    TBD7 - T-Bar Diffuser, Fixed pattern

    TBD7, TBR7

    The TBD7 is a fixed pattern, T-bar mounted linear slot diffuser designed to provide high air capacity with a tight
    horizontal air pattern.

  • Thermally Powered Heat/Cool Changeover Diffuser

    TBDI6-HC - Thermally Powered Heat/Cool Changeover Diffuser

    TBDI6-HC

    The TBDI6-HC uses an internal actuator mechanism to sense supply air temperature and adjust the air pattern to suit heating or cooling applications.

  • T-Bar Diffuser, Sloped Plenum

    TBD8 - T-Bar Diffuser, Sloped Plenum

    TBD8

    T-bar diffusers consists of a coated steel casing with extruded aluminum center tee (minimum 2 slot) and pattern
    controllers.

  • Opposed Blade Damper

    VCS3 - Opposed Blade Damper

    VCS3, VSC3SS, VCS3AL

    The VCS3 opposed blade damper provides airflow adjustment at the grille.

  • Air Extractor

    AE - Air Extractor

    AE1, AE2

    Air Extractors (AE) feature cold rolled steel construction with gang operated curved blades that move from fully-open to fully-closed to provide flow diversion and volume control at duct take-offs.

  • Air Nozzle Diffuser

    ANF/ANR - Air Nozzle Diffuser

    ANF, ANR

    Available in a variety of sizes and core styles, air nozzles are well suited to architectural applications that require long throws. Deep concentric deflection rings in each supply nozzle assembly […]

  • Radial Slot Diffuser

    RSD - Radial Slot Diffuser

    RSD

    The Radial Slot Diffuser (RSD) produces a high induction radial swirl pattern which promotes rapid temperature equalization and is suitable for VAV applications where high turndown is present. This product […]

  • T-Bar Diffuser

    TBD6 - T-Bar Diffuser

    TBD6, TBDV6, TBDR6, TBDRV6

    This T-bar diffuser is designed for high velocity discharge and high room air induction with low sound and pressure
    drop.

     

  • Shaped Diffuser

    SHP - Shaped Diffuser

    SHP-CF, SHP-PR

    SHP series architectural slot diffusers are designed specifically for integration with Armstrong Ceilings DesignFlexTM Shapes ceiling systems.

  • Clip for Flat 9/16 in. Ceiling T Grid

    916 Clip - Clip for Flat 9/16 in. Ceiling T Grid

    916 Clip

    The 916 clip accessory increases the corner size of 9/16 in. tee to a 15/16 in. flat ceiling tee equivalent. This allows 15/16 in. frame styles to be installed in flat 9/16 in. tees.

  • Square to Round Adaptor

    SR - Square to Round Adaptor

    SR, SR3

    Square-to-Round adaptors (SR) allow direct connection to round ducts for square necked diffusers/grilles.

  • Universal Plenum

    UP - Universal Plenum

    UP, UPLC

    The Universal Plenum (UP) is designed to fit Price Custom Flow, Linear Slot Diffuser, and Linear Bar Grille products.

  • Combination Damper and Equalizing Grid

    VCR6 - Combination Damper and Equalizing Grid

    VCR6

    Combination damper and equalizing grid is easily installed in the round duct take-off.

  • Radial Damper

    VCR9 - Radial Damper

    VCR9

    The VCR9 round, galvanized steel, radial style damper provides airflow adjustment at the diffuser or plenum neck.

  • Radial Opposed Blade Damper

    VCR7 - Radial Opposed Blade Damper

    VCR7

    The VCR7 opposed blade round damper provides airflow adjustment at the diffuser neck.

  • Combination Damper and Equalizing Grid

    VCS6 - Combination Damper and Equalizing Grid

    VCS6S, VCS6L

    VCS6 combination damper/equalizing grids are easily installed in square duct take-offs.

  • Wire Guards

    Wire Guards - Wire Guards

    Wire Guards

    For Round Cone Diffusers. Recommended for gymnasiums and areas where diffusers are subject to abusive conditions.

  • Duct Mounted Opposed Blade Damper

    VCS3B - Duct Mounted Opposed Blade Damper

    VCS3B, VCS3BSS, VCS3BAL

    The VCS3 opposed blade damper provides airflow adjustment at the grille.

  • Industrial Opposed Blade Damper

    VCS5 - Industrial Opposed Blade Damper

    VCS5

    ?The VCS5 opposed blade damper is intended for use with high capacity industrial grilles and diffusers such as the HCD, 150, and 300 series grilles.

  • Curved Vane Directional Diffusers

    CVD - Curved Vane Directional Diffusers

    CVD, SCVD, ACVD

    The Curved Vane Diffuser (CVD) is available in multiple core styles and features individually adjustable curved vanes that are accessible from the grille face.

  • Round Industrial Diffuser

    RID - Round Industrial Diffuser

    RID

    The Round Industrial Diffuser (RID) is a high-capacity ceiling diffuser that features heavy-gauge, spun steel
    construction and fully adjustable airflow.

  • Perforated Face Supply Diffuser, Star Pattern

    PDSP - Perforated Face Supply Diffuser, Star Pattern

    PDSP

    The perforated supply diffuser with star pattern controllers (PDSP) is extremely versatile, available in a wide variety of sizes with a full selection of frame and mounting styles.

  • Perforated Face Supply Diffuser, Modular Core

    PDMC - Perforated Face Supply Diffuser, Modular Core

    PDMC

    The modular core perforated supply diffuser (PDMC) is extremely versatile, available in a wide variety of sizes with a full selection of frame and mounting styles.

  • Perforated Face Supply Diffuser, Curved Pattern Controllers

    PDC - Perforated Face Supply Diffuser, Curved Pattern Controllers

    PDC, PDC-FR, PDCE-FR

    The perforated supply diffuser with curved pattern controllers (PDC) is extremely versatile, available in a wide variety of sizes with a full selection of frame and mounting styles.

  • Combination Supply and Return Diffuser

    CSRD - Combination Supply and Return Diffuser

    CSRD

    Combinatin supply and return diffusers are available with extruded aluminum louvered blades for supply air and an eggcrate core for return air.

  • T-Bar Diffusers, Return

    TBR - T-Bar Diffusers, Return

    TBR, TBR-FR

    Return diffusers have been designed to complement the supply series diffusers.

  • Perforated Face Supply Diffuser, Neck Mounted Controllers

    PDN - Perforated Face Supply Diffuser, Neck Mounted Controllers

    PDN, PDN-FR, PDNE-FR

    The perforated supply diffuser with neck mounted pattern controllers (PDN) is extremely versatile, available in a wide variety of sizes with a full selection of frame and mounting styles.

  • Light Troffer Diffuser

    LT - Light Troffer Diffuser

    LTA, LTF, LTN, LTR

    Light troffer diffusers attach quickly and easily to most air-handling-capable light fixtures and are suitable for surface slot and regressed slot applications.

  • Aluminum Plaster Frame

    APF - Aluminum Plaster Frame

    APF

    Plaster frames allow for easy installation of square ceiling or t-bar style slot diffusers into drywall ceilings.

  • Drop Box with High-Capacity Drum Louvers

    DBH - Drop Box with High-Capacity Drum Louvers

    DBH

    The drop box with high-capacity drum louvers (DBH) provides a complete package directly from the factory. The painted assembly ships with Price model HCD drum louvers installed.

  • Perforated Linear Security Diffuser

    MSPLD - Perforated Linear Security Diffuser

    MSPLD

    Linear security grilles provide a safe alternative to traditional slot diffusers in spaces that require a high level of security.