Shop Air Ventilation Duct Diffuser

Sponsored
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$30.70
Rectorseal Truaire Grille/Damper 81914 Plastic Ceiling Diffuser With Incorporated Ceiling Box, Easy Installation, HVAC, 8X8 4 Way Grille/Damper
Amazon.com
178
$30.70
Rectorseal Truaire Grille/Damper 81914 Plastic Ceiling Diffuser With Incorporated Ceiling Box, Easy Installation, HVAC, 8X8 4 Way Grille/Damper
Amazon.com
178
$58.00
Havaco 2'X2' Lay-In 3 Cone Supply With 10" Pre-Molded Boot, ABS Plastic Supply Grille, Ceiling Diffuser For Air Vent, Ideal For Heating, Cooling, And
Amazon.com
26
Free shipping
$58.00
Havaco 2'X2' Lay-In 3 Cone Supply With 10" Pre-Molded Boot, ABS Plastic Supply Grille, Ceiling Diffuser For Air Vent, Ideal For Heating, Cooling, And
Amazon.com
26
$45.07
Diffuser: Ceiling/Wall, 11 in H, 11 in W, Surface Mount, 8 in Duct, Aluminum, 4-Way Louvered, White Model: 4MJJ6
Grainger
$45.07
Diffuser: Ceiling/Wall, 11 in H, 11 in W, Surface Mount, 8 in Duct, Aluminum, 4-Way Louvered, White Model: 4MJJ6
Grainger
$34.12
10"W X 6"H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - Black [Outer Dimensions: 11.75"W X
Amazon.com
95
$34.12
10"W X 6"H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - Black [Outer Dimensions: 11.75"W X
Amazon.com
95
$49.95
Repa Market 8" Inch Round Aluminum Ceiling Diffuser - Industrial Supply Or Exhaust Ventilation - Vertical, Horizontal Air Flow - HVAC Air Conditioning
Amazon.com
Free shipping
$49.95
Repa Market 8" Inch Round Aluminum Ceiling Diffuser - Industrial Supply Or Exhaust Ventilation - Vertical, Horizontal Air Flow - HVAC Air Conditioning
Amazon.com
Free shipping
$47.16
HVAC Premium 18" X 8" 3-Way AIR Supply Grille - Vent Cover & Diffuser - Flat Stamped Face - White [Outer Dimensions: 19.75"W X 9.75"H]
Amazon.com
6K+
Free shipping
$47.16
HVAC Premium 18" X 8" 3-Way AIR Supply Grille - Vent Cover & Diffuser - Flat Stamped Face - White [Outer Dimensions: 19.75"W X 9.75"H]
Amazon.com
6K+
$190.40
Diffuser: Ceiling/Wall, 13 in H, 13 in W, Surface Mount, 10 in Duct, Aluminum, 4-Way Louvered, White Model: 4MJJ7
Grainger
$190.40
Diffuser: Ceiling/Wall, 13 in H, 13 in W, Surface Mount, 10 in Duct, Aluminum, 4-Way Louvered, White Model: 4MJJ7
Grainger
$42.83
Diffuser: Ceiling/Wall, 11 in H, 11 in W, Surface Mount, 8 in Duct, Aluminum, 3-Way Louvered, White Model: 4MJJ3
Grainger
$42.83
Diffuser: Ceiling/Wall, 11 in H, 11 in W, Surface Mount, 8 in Duct, Aluminum, 3-Way Louvered, White Model: 4MJJ3
Grainger
$57.91
Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 8 in Duct, Steel, Square Cone, White Model: 4MJV3
Grainger
$57.91
Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 8 in Duct, Steel, Square Cone, White Model: 4MJV3
Grainger
$18.09
6"W X 6"H 4-Way AIR Supply Grille - Vent Cover & Diffuser - Flat Stamped Face - White [Outer Dimensions: 7.75"W X 7.75"H]
Amazon.com
1K+
$18.09
6"W X 6"H 4-Way AIR Supply Grille - Vent Cover & Diffuser - Flat Stamped Face - White [Outer Dimensions: 7.75"W X 7.75"H]
Amazon.com
1K+
$45.10
14"W X 6"H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 15.75"W X
Amazon.com
1K+
Free shipping
$45.10
14"W X 6"H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 15.75"W X
Amazon.com
1K+
$47.99
Therwen 2 Pieces 10 Inch Round Vent Cover, Ceiling Diffuser HVAC Vent Duct Cover Replacement With Screws To Install For Home Ventilation Use, Fitting
Amazon.com
30
Free shipping
$47.99
Therwen 2 Pieces 10 Inch Round Vent Cover, Ceiling Diffuser HVAC Vent Duct Cover Replacement With Screws To Install For Home Ventilation Use, Fitting
Amazon.com
30
$115.10
Diffuser: Ceiling/Wall, 9 in H, 9 in W, Surface Mount, 6 in Duct, Aluminum, 4-Way Louvered, White Model: 4MJJ5
Grainger
$115.10
Diffuser: Ceiling/Wall, 9 in H, 9 in W, Surface Mount, 6 in Duct, Aluminum, 4-Way Louvered, White Model: 4MJJ5
Grainger
$24.82
HVAC Premium 8"W X 8"H 4-Way AIR Supply Grille - Vent Cover & Diffuser - Flat Stamped Face - White [Outer Dimensions: 9.75"W X 9.75"H]
Amazon.com
6K+
$24.82
HVAC Premium 8"W X 8"H 4-Way AIR Supply Grille - Vent Cover & Diffuser - Flat Stamped Face - White [Outer Dimensions: 9.75"W X 9.75"H]
Amazon.com
6K+
$29.70
Diffuser: Ceiling/Wall, 9 in H, 9 in W, Surface Mount, 6 in Duct, Aluminum, 3-Way Louvered, White Model: 4MJJ2
Grainger
$29.70
Diffuser: Ceiling/Wall, 9 in H, 9 in W, Surface Mount, 6 in Duct, Aluminum, 3-Way Louvered, White Model: 4MJJ2
Grainger
$50.45
10"W X 10"H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 11.75"W X
Amazon.com
3K+
Free shipping
$50.45
10"W X 10"H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 11.75"W X
Amazon.com
3K+
$25.79
PATIKIL 6 Inch Round Air Vent, Adjustable Ball Jet Nozzle Diffuser Ceiling Diffuser Vent Cover ABS Soffit Vent For Bathroom Kitchen Living Room
Amazon.com
2
$25.79
PATIKIL 6 Inch Round Air Vent, Adjustable Ball Jet Nozzle Diffuser Ceiling Diffuser Vent Cover ABS Soffit Vent For Bathroom Kitchen Living Room
Amazon.com
2
$58.86
Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 10 in Duct, Steel, Square Cone, White Model: 4MJV4
Grainger
$58.86
Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 10 in Duct, Steel, Square Cone, White Model: 4MJV4
Grainger
$58.75
Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Steel, Square Cone, White Model: 4MJV5
Grainger
$58.75
Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Steel, Square Cone, White Model: 4MJV5
Grainger
$71.56
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 8 in Duct, Plastic, Square Plaque, White Model: STR-PQ-8W
Grainger
$71.56
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 8 in Duct, Plastic, Square Plaque, White Model: STR-PQ-8W
Grainger
$90.16
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 8 in Duct, Plastic, Square Cone, White Model: STR-C-8W-R6
Grainger
$90.16
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 8 in Duct, Plastic, Square Cone, White Model: STR-C-8W-R6
Grainger
$79.99
$99.99
BUILDMART - 36" White Linear Slot Diffuser - 2 Slot - Double Slot - Decorative Air Vent - Modern AC Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
Linear Slot Diffusers
20% off
$79.99
$99.99
BUILDMART - 36" White Linear Slot Diffuser - 2 Slot - Double Slot - Decorative Air Vent - Modern AC Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
Linear Slot Diffusers
$47.29
Diffuser: Ceiling/Wall, 23 5/8 in H, 23 5/8 in W, Surface Mount, 6 To 14 in Duct, Steel, Perforated Model: 4JRL2
Grainger
$47.29
Diffuser: Ceiling/Wall, 23 5/8 in H, 23 5/8 in W, Surface Mount, 6 To 14 in Duct, Steel, Perforated Model: 4JRL2
Grainger
$17.41
Diffuser: Ceiling/Wall, 14 in Dia, Surface Mount, 10 in Duct, Steel, Round Cone, White Model: 4JRL1
Grainger
$17.41
Diffuser: Ceiling/Wall, 14 in Dia, Surface Mount, 10 in Duct, Steel, Round Cone, White Model: 4JRL1
Grainger
$56.21
Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 8 in Duct, Steel, Square Cone, White Model: 4MJU3
Grainger
$56.21
Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 8 in Duct, Steel, Square Cone, White Model: 4MJU3
Grainger
$14.92
Diffuser: Ceiling/Wall, 10 1/2 in Dia, Surface Mount, 8 in Duct, Steel, Round Cone, White Model: 4JRK9
Grainger
$14.92
Diffuser: Ceiling/Wall, 10 1/2 in Dia, Surface Mount, 8 in Duct, Steel, Round Cone, White Model: 4JRK9
Grainger
$10.68
Diffuser: Ceiling/Wall, 8 1/2 in Dia, Surface Mount, 6 in Duct, Steel, Round Cone, White Model: 4JRK8
Grainger
$10.68
Diffuser: Ceiling/Wall, 8 1/2 in Dia, Surface Mount, 6 in Duct, Steel, Round Cone, White Model: 4JRK8
Grainger
$59.94
Diffuser: Ceiling/Wall, 23 3/4 in H, 23 3/4 in W, Surface Mount, 6 To 12 in Duct, Steel, Square Cone Model: 4JRL3
Grainger
$59.94
Diffuser: Ceiling/Wall, 23 3/4 in H, 23 3/4 in W, Surface Mount, 6 To 12 in Duct, Steel, Square Cone Model: 4JRL3
Grainger
$50.62
Rectorseal Truaire Retrofit Grille/Damper 81904 Plastic Ceiling Diffuser With Incorporated Ceiling Box, Easy Installation, HVAC, 6X6 4Way, Grille/
Amazon.com
9
Free shipping
$50.62
Rectorseal Truaire Retrofit Grille/Damper 81904 Plastic Ceiling Diffuser With Incorporated Ceiling Box, Easy Installation, HVAC, 6X6 4Way, Grille/
Amazon.com
9
$24.99
Therwen 2 Pieces 6 Inch Round Vent Cover, Ceiling Diffuser HVAC Vent Duct Cover Replacement With Screws To Install For Home Ventilation Use, Fitting
Amazon.com
98
$24.99
Therwen 2 Pieces 6 Inch Round Vent Cover, Ceiling Diffuser HVAC Vent Duct Cover Replacement With Screws To Install For Home Ventilation Use, Fitting
Amazon.com
98
$76.09
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 6 To 14 in Duct, Plastic, Square Plaque, White Model: STR-PQ-W-NRD
Grainger
$76.09
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 6 To 14 in Duct, Plastic, Square Plaque, White Model: STR-PQ-W-NRD
Grainger
$66.41
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 6 in Duct, Plastic, Square Cone, White Model: STR-C-6W
Grainger
7
$66.41
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 6 in Duct, Plastic, Square Cone, White Model: STR-C-6W
Grainger
7
$71.56
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 8 in Duct, Plastic, Square Plaque, Black Model: STR-PQ-8BK
Grainger
$71.56
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 8 in Duct, Plastic, Square Plaque, Black Model: STR-PQ-8BK
Grainger
$21.81
8 Inch Round Ceiling Diffuser, Metal Adjustable Wall Air Vent Diffuser Vent Duct Cover Exhaust Supply For Kitchen Bathroom Garage, Black | Harfington
harfington
30-day returns (most items)
$21.81
8 Inch Round Ceiling Diffuser, Metal Adjustable Wall Air Vent Diffuser Vent Duct Cover Exhaust Supply For Kitchen Bathroom Garage, Black | Harfington
harfington
30-day returns
$66.41
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 10 in Duct, Plastic, Square Cone, White Model: STR-C-10W
Grainger
1
$66.41
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 10 in Duct, Plastic, Square Cone, White Model: STR-C-10W
Grainger
1
$90.92
Price Diffuser: Ceiling, 24 in Dia, 24 in H, 24 in W, Lay-In, 8 in Duct, Steel, Square Plaque, White Model: SPD-GR000038
Grainger
$90.92
Price Diffuser: Ceiling, 24 in Dia, 24 in H, 24 in W, Lay-In, 8 in Duct, Steel, Square Plaque, White Model: SPD-GR000038
Grainger
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    Shop Air Ventilation Duct Diffuser

    Sponsored
    About our ads
    $30.70
    Rectorseal Truaire Grille/Damper 81914 Plastic Ceiling Diffuser With Incorporated Ceiling Box, Easy Installation, HVAC, 8X8 4 Way Grille/Damper
    Amazon.com
    178
    $30.70
    Rectorseal Truaire Grille/Damper 81914 Plastic Ceiling Diffuser With Incorporated Ceiling Box, Easy Installation, HVAC, 8X8 4 Way Grille/Damper
    Amazon.com
    178
    $58.00
    Havaco 2'X2' Lay-In 3 Cone Supply With 10" Pre-Molded Boot, ABS Plastic Supply Grille, Ceiling Diffuser For Air Vent, Ideal For Heating, Cooling, And
    Amazon.com
    26
    Free shipping
    $58.00
    Havaco 2'X2' Lay-In 3 Cone Supply With 10" Pre-Molded Boot, ABS Plastic Supply Grille, Ceiling Diffuser For Air Vent, Ideal For Heating, Cooling, And
    Amazon.com
    26
    $45.07
    Diffuser: Ceiling/Wall, 11 in H, 11 in W, Surface Mount, 8 in Duct, Aluminum, 4-Way Louvered, White Model: 4MJJ6
    Grainger
    $45.07
    Diffuser: Ceiling/Wall, 11 in H, 11 in W, Surface Mount, 8 in Duct, Aluminum, 4-Way Louvered, White Model: 4MJJ6
    Grainger
    $34.12
    10"W X 6"H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - Black [Outer Dimensions: 11.75"W X
    Amazon.com
    95
    $34.12
    10"W X 6"H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - Black [Outer Dimensions: 11.75"W X
    Amazon.com
    95
    $49.95
    Repa Market 8" Inch Round Aluminum Ceiling Diffuser - Industrial Supply Or Exhaust Ventilation - Vertical, Horizontal Air Flow - HVAC Air Conditioning
    Amazon.com
    Free shipping
    $49.95
    Repa Market 8" Inch Round Aluminum Ceiling Diffuser - Industrial Supply Or Exhaust Ventilation - Vertical, Horizontal Air Flow - HVAC Air Conditioning
    Amazon.com
    Free shipping
    $47.16
    HVAC Premium 18" X 8" 3-Way AIR Supply Grille - Vent Cover & Diffuser - Flat Stamped Face - White [Outer Dimensions: 19.75"W X 9.75"H]
    Amazon.com
    6K+
    Free shipping
    $47.16
    HVAC Premium 18" X 8" 3-Way AIR Supply Grille - Vent Cover & Diffuser - Flat Stamped Face - White [Outer Dimensions: 19.75"W X 9.75"H]
    Amazon.com
    6K+
    $190.40
    Diffuser: Ceiling/Wall, 13 in H, 13 in W, Surface Mount, 10 in Duct, Aluminum, 4-Way Louvered, White Model: 4MJJ7
    Grainger
    $190.40
    Diffuser: Ceiling/Wall, 13 in H, 13 in W, Surface Mount, 10 in Duct, Aluminum, 4-Way Louvered, White Model: 4MJJ7
    Grainger
    $42.83
    Diffuser: Ceiling/Wall, 11 in H, 11 in W, Surface Mount, 8 in Duct, Aluminum, 3-Way Louvered, White Model: 4MJJ3
    Grainger
    $42.83
    Diffuser: Ceiling/Wall, 11 in H, 11 in W, Surface Mount, 8 in Duct, Aluminum, 3-Way Louvered, White Model: 4MJJ3
    Grainger
    $57.91
    Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 8 in Duct, Steel, Square Cone, White Model: 4MJV3
    Grainger
    $57.91
    Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 8 in Duct, Steel, Square Cone, White Model: 4MJV3
    Grainger
    $18.09
    6"W X 6"H 4-Way AIR Supply Grille - Vent Cover & Diffuser - Flat Stamped Face - White [Outer Dimensions: 7.75"W X 7.75"H]
    Amazon.com
    1K+
    $18.09
    6"W X 6"H 4-Way AIR Supply Grille - Vent Cover & Diffuser - Flat Stamped Face - White [Outer Dimensions: 7.75"W X 7.75"H]
    Amazon.com
    1K+
    $45.10
    14"W X 6"H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 15.75"W X
    Amazon.com
    1K+
    Free shipping
    $45.10
    14"W X 6"H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 15.75"W X
    Amazon.com
    1K+
    $47.99
    Therwen 2 Pieces 10 Inch Round Vent Cover, Ceiling Diffuser HVAC Vent Duct Cover Replacement With Screws To Install For Home Ventilation Use, Fitting
    Amazon.com
    30
    Free shipping
    $47.99
    Therwen 2 Pieces 10 Inch Round Vent Cover, Ceiling Diffuser HVAC Vent Duct Cover Replacement With Screws To Install For Home Ventilation Use, Fitting
    Amazon.com
    30
    $115.10
    Diffuser: Ceiling/Wall, 9 in H, 9 in W, Surface Mount, 6 in Duct, Aluminum, 4-Way Louvered, White Model: 4MJJ5
    Grainger
    $115.10
    Diffuser: Ceiling/Wall, 9 in H, 9 in W, Surface Mount, 6 in Duct, Aluminum, 4-Way Louvered, White Model: 4MJJ5
    Grainger
    $24.82
    HVAC Premium 8"W X 8"H 4-Way AIR Supply Grille - Vent Cover & Diffuser - Flat Stamped Face - White [Outer Dimensions: 9.75"W X 9.75"H]
    Amazon.com
    6K+
    $24.82
    HVAC Premium 8"W X 8"H 4-Way AIR Supply Grille - Vent Cover & Diffuser - Flat Stamped Face - White [Outer Dimensions: 9.75"W X 9.75"H]
    Amazon.com
    6K+
    $29.70
    Diffuser: Ceiling/Wall, 9 in H, 9 in W, Surface Mount, 6 in Duct, Aluminum, 3-Way Louvered, White Model: 4MJJ2
    Grainger
    $29.70
    Diffuser: Ceiling/Wall, 9 in H, 9 in W, Surface Mount, 6 in Duct, Aluminum, 3-Way Louvered, White Model: 4MJJ2
    Grainger
    $50.45
    10"W X 10"H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 11.75"W X
    Amazon.com
    3K+
    Free shipping
    $50.45
    10"W X 10"H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - White [Outer Dimensions: 11.75"W X
    Amazon.com
    3K+
    $25.79
    PATIKIL 6 Inch Round Air Vent, Adjustable Ball Jet Nozzle Diffuser Ceiling Diffuser Vent Cover ABS Soffit Vent For Bathroom Kitchen Living Room
    Amazon.com
    2
    $25.79
    PATIKIL 6 Inch Round Air Vent, Adjustable Ball Jet Nozzle Diffuser Ceiling Diffuser Vent Cover ABS Soffit Vent For Bathroom Kitchen Living Room
    Amazon.com
    2
    $58.86
    Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 10 in Duct, Steel, Square Cone, White Model: 4MJV4
    Grainger
    $58.86
    Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 10 in Duct, Steel, Square Cone, White Model: 4MJV4
    Grainger