Shop Diffuser for AC

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$61.00
CRYPTIC 4" Linear Slot Diffuser - 2 Slot Modern AC Vent Cover 38X4
Cryptic Air - Merchant Center
$61.00
CRYPTIC 4" Linear Slot Diffuser - 2 Slot Modern AC Vent Cover 38X4
Cryptic Air - Merchant Center
$89.00
CRYPTIC 4" Linear Slot Diffuser - 2 Slot Modern AC Vent Cover 60X4
Cryptic Air - Merchant Center
$89.00
CRYPTIC 4" Linear Slot Diffuser - 2 Slot Modern AC Vent Cover 60X4
Cryptic Air - Merchant Center
$71.00
CRYPTIC - 8" Linear Slot Diffuser - 4 Slot Modern AC Vent Cover 20X8
Cryptic Air - Merchant Center
$71.00
CRYPTIC - 8" Linear Slot Diffuser - 4 Slot Modern AC Vent Cover 20X8
Cryptic Air - Merchant Center
$347.84
CRYPTIC - 16" Linear Slot Diffuser - 8 Slot Modern AC Vent Cover 60X16
Cryptic Air - Merchant Center
$347.84
CRYPTIC - 16" Linear Slot Diffuser - 8 Slot Modern AC Vent Cover 60X16
Cryptic Air - Merchant Center
$82.00
CRYPTIC - 10" Linear Slot Diffuser - 5 Slot Modern AC Vent Cover 22X10
Cryptic Air - Merchant Center
$82.00
CRYPTIC - 10" Linear Slot Diffuser - 5 Slot Modern AC Vent Cover 22X10
Cryptic Air - Merchant Center
$76.00
CRYPTIC - 8" Linear Slot Diffuser - 4 Slot Modern AC Vent Cover 22X8
Cryptic Air - Merchant Center
$76.00
CRYPTIC - 8" Linear Slot Diffuser - 4 Slot Modern AC Vent Cover 22X8
Cryptic Air - Merchant Center
$239.99
CRYPTIC - 24" Linear Slot Diffuser - 12 Slot Modern AC Vent Cover 26X24
Cryptic Air - Merchant Center
$239.99
CRYPTIC - 24" Linear Slot Diffuser - 12 Slot Modern AC Vent Cover 26X24
Cryptic Air - Merchant Center
$79.00
CRYPTIC - 2" Linear Slot Diffuser - 1 Slot Modern AC Vent Cover 72X2
Cryptic Air - Merchant Center
$79.00
CRYPTIC - 2" Linear Slot Diffuser - 1 Slot Modern AC Vent Cover 72X2
Cryptic Air - Merchant Center
$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
255
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
$30.00
CRYPTIC - 2" Linear Slot Diffuser - 1 Slot Modern AC Vent Cover 26X2
Cryptic Air - Merchant Center
$30.00
CRYPTIC - 2" Linear Slot Diffuser - 1 Slot Modern AC Vent Cover 26X2
Cryptic Air - Merchant Center
$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
$75.72
Price Diffuser: Ceiling, 24 in Dia, 24 in H, 24 in W, Lay-In, 15 in Duct, Steel, Square Plaque, White Model: SPD-GR000042
Grainger
$75.72
Price Diffuser: Ceiling, 24 in Dia, 24 in H, 24 in W, Lay-In, 15 in Duct, Steel, Square Plaque, White Model: SPD-GR000042
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
$45.07
Diffuser: Ceiling/Wall, 11 in H, 11 in W, Surface Mount, 8 in Duct, Aluminum, 4-Way Louvered, White Model: 4MJJ6
Grainger
$20.02
$46.34
Rectorseal Truaire Grille/Damper 81914 Plastic Ceiling Diffuser With Incorporated Ceiling Box, Easy Installation, HVAC, 8X8 4 Way Grille/Damper
Amazon.com
204
56% off
$20.02
$46.34
Rectorseal Truaire Grille/Damper 81914 Plastic Ceiling Diffuser With Incorporated Ceiling Box, Easy Installation, HVAC, 8X8 4 Way Grille/Damper
Amazon.com
$70.33
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-FR
Grainger
7
$70.33
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-FR
Grainger
$89.40
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-R6
Grainger
1
$89.40
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-R6
Grainger
$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
5K+
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
$256.49
2026 Upgraded HVAC Scent Diffuser Machine 1000ML, Scent Air Machine With Wifi For Home, Hotel Diffuser Coverage 6000 Sq.Ft, Waterless Cold Air
Amazon.com
Free shipping
$256.49
2026 Upgraded HVAC Scent Diffuser Machine 1000ML, Scent Air Machine With Wifi For Home, Hotel Diffuser Coverage 6000 Sq.Ft, Waterless Cold Air
Amazon.com
$47.49
Diffuser: Ceiling/Wall, 13 in H, 13 in W, Surface Mount, 10 in Duct, Aluminum, 3-Way Louvered, White Model: 4MJJ4
Grainger
$47.49
Diffuser: Ceiling/Wall, 13 in H, 13 in W, Surface Mount, 10 in Duct, Aluminum, 3-Way Louvered, White Model: 4MJJ4
Grainger
$99.37
Price Diffuser: Ceiling, 24 in Dia, 24 in H, 24 in W, Lay-In, 6 in Duct, Steel, Square Plaque, White Model: SPD-GR000037
Grainger
$99.37
Price Diffuser: Ceiling, 24 in Dia, 24 in H, 24 in W, Lay-In, 6 in Duct, Steel, Square Plaque, White Model: SPD-GR000037
Grainger
$59.10
Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 6 in Duct, Steel, Square Cone, White Model: 4MJV2
Grainger
$59.10
Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 6 in Duct, Steel, Square Cone, White Model: 4MJV2
Grainger
$85.99
$109.99
BUILDMART - 30X6 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Linear Slot Diffusers
21% off
$85.99
$109.99
BUILDMART - 30X6 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Linear Slot Diffusers
$85.00
Air Diffuser For 8in Ducts
Etsy
270
$85.00
Air Diffuser For 8in Ducts
Etsy
$36.99
$46.99
BUILDMART - 10X6 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Linear Slot Diffusers
22
21% off
$36.99
$46.99
BUILDMART - 10X6 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Linear Slot Diffusers
$29.99
$39.99
BUILDMART - 6X6 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Texas Buildmart
25% off
$29.99
$39.99
BUILDMART - 6X6 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Texas Buildmart
$49.99
$63.99
BUILDMART - 12X8 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Texas Buildmart
21% off
$49.99
$63.99
BUILDMART - 12X8 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Texas Buildmart
$39.99
$49.99
BUILDMART - 8X8 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Linear Slot Diffusers
20% off
$39.99
$49.99
BUILDMART - 8X8 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Linear Slot Diffusers
$47.99
$54.99
BUILDMART - 14X6 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Texas Buildmart
12% off
$47.99
$54.99
BUILDMART - 14X6 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Texas Buildmart
$1,228.95
F-Matic Versa Aluminum Diffuser HVAC System Silver 110V W/HVAC
Worldwide Janitor
$1,228.95
F-Matic Versa Aluminum Diffuser HVAC System Silver 110V W/HVAC
Worldwide Janitor
$1,228.95
F-Matic Versa Aluminum Diffuser HVAC System Black 110V W/HVAC
Worldwide Janitor
$1,228.95
F-Matic Versa Aluminum Diffuser HVAC System Black 110V W/HVAC
Worldwide Janitor
$28.00
Airtec MV3 3-Way White Ceiling Diffuser
Skip The Warehouse
$28.00
Airtec MV3 3-Way White Ceiling Diffuser
Skip The Warehouse
$44.13
12.5" Round White Plastic Standard Air Grille Air Diffuser Bu Airtec Rectorseal
1800ceiling.com
30-day returns (most items)
$44.13
12.5" Round White Plastic Standard Air Grille Air Diffuser Bu Airtec Rectorseal
1800ceiling.com
$241.00
Spacepak AC-LSO Slot Diffuser
Skip The Warehouse
$241.00
Spacepak AC-LSO Slot Diffuser
Skip The Warehouse
$69.00
Quietcool 5.75-In X 17.75-In 2-Way Aluminum Sidewall/Ceiling Diffuser In White | LSD-1806
Lowe's
1
$69.00
Quietcool 5.75-In X 17.75-In 2-Way Aluminum Sidewall/Ceiling Diffuser In White | LSD-1806
Lowe's
$40.00
Custom Linear Wall Or Ceiling Diffuser - Stylish HVAC Grille
Etsy
$40.00
Custom Linear Wall Or Ceiling Diffuser - Stylish HVAC Grille
Etsy
$33.16
Airtec MV3S 3-Way White Ceiling Diffuser
Skip The Warehouse
$33.16
Airtec MV3S 3-Way White Ceiling Diffuser
Skip The Warehouse
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    Shop Diffuser for AC

    Sponsored
    About our ads
    $61.00
    CRYPTIC 4" Linear Slot Diffuser - 2 Slot Modern AC Vent Cover 38X4
    Cryptic Air - Merchant Center
    $61.00
    CRYPTIC 4" Linear Slot Diffuser - 2 Slot Modern AC Vent Cover 38X4
    Cryptic Air - Merchant Center
    $89.00
    CRYPTIC 4" Linear Slot Diffuser - 2 Slot Modern AC Vent Cover 60X4
    Cryptic Air - Merchant Center
    $89.00
    CRYPTIC 4" Linear Slot Diffuser - 2 Slot Modern AC Vent Cover 60X4
    Cryptic Air - Merchant Center
    $71.00
    CRYPTIC - 8" Linear Slot Diffuser - 4 Slot Modern AC Vent Cover 20X8
    Cryptic Air - Merchant Center
    $71.00
    CRYPTIC - 8" Linear Slot Diffuser - 4 Slot Modern AC Vent Cover 20X8
    Cryptic Air - Merchant Center
    $347.84
    CRYPTIC - 16" Linear Slot Diffuser - 8 Slot Modern AC Vent Cover 60X16
    Cryptic Air - Merchant Center
    $347.84
    CRYPTIC - 16" Linear Slot Diffuser - 8 Slot Modern AC Vent Cover 60X16
    Cryptic Air - Merchant Center
    $82.00
    CRYPTIC - 10" Linear Slot Diffuser - 5 Slot Modern AC Vent Cover 22X10
    Cryptic Air - Merchant Center
    $82.00
    CRYPTIC - 10" Linear Slot Diffuser - 5 Slot Modern AC Vent Cover 22X10
    Cryptic Air - Merchant Center
    $76.00
    CRYPTIC - 8" Linear Slot Diffuser - 4 Slot Modern AC Vent Cover 22X8
    Cryptic Air - Merchant Center
    $76.00
    CRYPTIC - 8" Linear Slot Diffuser - 4 Slot Modern AC Vent Cover 22X8
    Cryptic Air - Merchant Center
    $239.99
    CRYPTIC - 24" Linear Slot Diffuser - 12 Slot Modern AC Vent Cover 26X24
    Cryptic Air - Merchant Center
    $239.99
    CRYPTIC - 24" Linear Slot Diffuser - 12 Slot Modern AC Vent Cover 26X24
    Cryptic Air - Merchant Center
    $79.00
    CRYPTIC - 2" Linear Slot Diffuser - 1 Slot Modern AC Vent Cover 72X2
    Cryptic Air - Merchant Center
    $79.00
    CRYPTIC - 2" Linear Slot Diffuser - 1 Slot Modern AC Vent Cover 72X2
    Cryptic Air - Merchant Center
    $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
    255
    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
    $30.00
    CRYPTIC - 2" Linear Slot Diffuser - 1 Slot Modern AC Vent Cover 26X2
    Cryptic Air - Merchant Center
    $30.00
    CRYPTIC - 2" Linear Slot Diffuser - 1 Slot Modern AC Vent Cover 26X2
    Cryptic Air - Merchant Center
    $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
    $75.72
    Price Diffuser: Ceiling, 24 in Dia, 24 in H, 24 in W, Lay-In, 15 in Duct, Steel, Square Plaque, White Model: SPD-GR000042
    Grainger
    $75.72
    Price Diffuser: Ceiling, 24 in Dia, 24 in H, 24 in W, Lay-In, 15 in Duct, Steel, Square Plaque, White Model: SPD-GR000042
    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
    $45.07
    Diffuser: Ceiling/Wall, 11 in H, 11 in W, Surface Mount, 8 in Duct, Aluminum, 4-Way Louvered, White Model: 4MJJ6
    Grainger
    $20.02
    $46.34
    Rectorseal Truaire Grille/Damper 81914 Plastic Ceiling Diffuser With Incorporated Ceiling Box, Easy Installation, HVAC, 8X8 4 Way Grille/Damper
    Amazon.com
    204
    56% off
    $20.02
    $46.34
    Rectorseal Truaire Grille/Damper 81914 Plastic Ceiling Diffuser With Incorporated Ceiling Box, Easy Installation, HVAC, 8X8 4 Way Grille/Damper
    Amazon.com
    $70.33
    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-FR
    Grainger
    7
    $70.33
    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-FR
    Grainger
    $89.40
    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-R6
    Grainger
    1
    $89.40
    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-R6
    Grainger
    $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
    5K+
    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
    $256.49
    2026 Upgraded HVAC Scent Diffuser Machine 1000ML, Scent Air Machine With Wifi For Home, Hotel Diffuser Coverage 6000 Sq.Ft, Waterless Cold Air
    Amazon.com
    Free shipping
    $256.49
    2026 Upgraded HVAC Scent Diffuser Machine 1000ML, Scent Air Machine With Wifi For Home, Hotel Diffuser Coverage 6000 Sq.Ft, Waterless Cold Air
    Amazon.com