Shop 12-inch diffusers

Sponsored
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$57.50
Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Steel, Square Cone, White Model: 4MJU5
Grainger
2
$57.50
Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Steel, Square Cone, White Model: 4MJU5
Grainger
$62.16
Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Steel, Square Cone, White Model: 4MJV5
Grainger
$62.16
Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Steel, Square Cone, White Model: 4MJV5
Grainger
$62.14
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
$62.14
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
$87.30
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Plastic, Square Cone, White Model: STR-C-12W-FR
Grainger
$87.30
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Plastic, Square Cone, White Model: STR-C-12W-FR
Grainger
$69.95
Tan Plastic 2'X2' Air Diffuser With 12" Collar American Louver
1800ceiling.com
$69.95
Tan Plastic 2'X2' Air Diffuser With 12" Collar American Louver
1800ceiling.com
$71.19
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Plastic, Square Plaque, White Model: STR-PQ-12W
Grainger
1
$71.19
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Plastic, Square Plaque, White Model: STR-PQ-12W
Grainger
$46.27
Bluefin DF2W12-12 12" X 12" (Wall Opening Size) 4-Way Aluminum Square Ceiling Diffuser (White) | Supplyhouse.Com
SupplyHouse.com
1
$46.27
Bluefin DF2W12-12 12" X 12" (Wall Opening Size) 4-Way Aluminum Square Ceiling Diffuser (White) | Supplyhouse.Com
SupplyHouse.com
$39.99
$49.99
BUILDMART - 12X6 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Linear Slot Diffusers
26
20% off
$39.99
$49.99
BUILDMART - 12X6 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
$49.99
BUILDMART - 12 White Inch Linear Slot Diffuser - 1 Slot - Single Slot - Decorative Linear Air - Modern Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
Texas Buildmart
40% off
$29.99
$49.99
BUILDMART - 12 White Inch Linear Slot Diffuser - 1 Slot - Single Slot - Decorative Linear Air - Modern Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
Texas Buildmart
$21.90
Bluefin DF3W-12 12" (Wall Opening Size) Round Ceiling Diffuser (White) | Supplyhouse.Com
SupplyHouse.com
2
$21.90
Bluefin DF3W-12 12" (Wall Opening Size) Round Ceiling Diffuser (White) | Supplyhouse.Com
SupplyHouse.com
$49.56
Bluefin DF1W1212 12" X 12" (Wall Opening Size) 3-Way Aluminum Square Ceiling Diffuser (White) | Supplyhouse.Com
SupplyHouse.com
$49.56
Bluefin DF1W1212 12" X 12" (Wall Opening Size) 3-Way Aluminum Square Ceiling Diffuser (White) | Supplyhouse.Com
SupplyHouse.com
$29.99
$49.99
BUILDMART - 12 Black Inch Linear Slot Diffuser - 1 Slot - Single Slot - Decorative Linear Air - Modern Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
Texas Buildmart
40% off
$29.99
$49.99
BUILDMART - 12 Black Inch Linear Slot Diffuser - 1 Slot - Single Slot - Decorative Linear Air - Modern Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
Texas Buildmart
$79.99
$89.99
BUILDMART - 12X12 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Texas Buildmart
11% off
$79.99
$89.99
BUILDMART - 12X12 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
Texas Buildmart
$66.95
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Plastic, Square Cone, White Model: STR-C-12W
Grainger
7
$66.95
American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Plastic, Square Cone, White Model: STR-C-12W
Grainger
$49.99
$59.99
BUILDMART - 12" Black Linear Slot Diffuser - 3 Slot - Triple Slot - Decorative Air Vent - Modern AC Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
Linear Slot Diffusers
16% off
$49.99
$59.99
BUILDMART - 12" Black Linear Slot Diffuser - 3 Slot - Triple Slot - Decorative Air Vent - Modern AC Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
Linear Slot Diffusers
$25.48
RELIABILT 12-In X 12-In Step-Down Steel Sidewall/Ceiling Diffuser In White | 54112WH
Lowe's
$25.48
RELIABILT 12-In X 12-In Step-Down Steel Sidewall/Ceiling Diffuser In White | 54112WH
Lowe's
$66.98
RELIABILT 12-In X 12-In 4-Way Aluminum Sidewall/Ceiling Diffuser In White | 5841212WH
Lowe's
$66.98
RELIABILT 12-In X 12-In 4-Way Aluminum Sidewall/Ceiling Diffuser In White | 5841212WH
Lowe's
$46.90
Aclaminaire 12-In X 12-In 4-Way Aluminum Ceiling Diffuser In White | L-CL 4 m 12X12
Lowe's
387
$46.90
Aclaminaire 12-In X 12-In 4-Way Aluminum Ceiling Diffuser In White | L-CL 4 m 12X12
Lowe's
$44.13
12.5" Round White Plastic Standard Air Grille Air Diffuser Bu Airtec Rectorseal
1800ceiling.com
$44.13
12.5" Round White Plastic Standard Air Grille Air Diffuser Bu Airtec Rectorseal
1800ceiling.com
$29.99
$49.99
BUILDMART - 12" Black Linear Slot Diffuser - 1 Slot - Single Slot - Decorative Air Vent - Modern AC Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
Linear Slot Diffusers
40% off
$29.99
$49.99
BUILDMART - 12" Black Linear Slot Diffuser - 1 Slot - Single Slot - Decorative Air Vent - Modern AC Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
Linear Slot Diffusers
$52.29
$55.39
12 in Square 2 Cone Diffuser, White
Zoro.com
2
$52.29
$55.39
12 in Square 2 Cone Diffuser, White
Zoro.com
$64.19
$67.99
12 in Square 3 Cone Diffuser, White
Zoro.com
$64.19
$67.99
12 in Square 3 Cone Diffuser, White
Zoro.com
$78.95
ACAMINAIRE 4-Way Fixed Core Aluminum Ceiling Diffuser, 12" X 12", White, L-JSF-4OB 12X12
Global Industrial
3
$78.95
ACAMINAIRE 4-Way Fixed Core Aluminum Ceiling Diffuser, 12" X 12", White, L-JSF-4OB 12X12
Global Industrial
$203.03
$299.39
GSW USA DF-12S 12 Inch Diffuser Drop-Down Stainless Steel 4-Way Adjustable Blades | Commercial Restaurant Supply
RestaurantSupply.com
32% off
$203.03
$299.39
GSW USA DF-12S 12 Inch Diffuser Drop-Down Stainless Steel 4-Way Adjustable Blades | Commercial Restaurant Supply
RestaurantSupply.com
$70.85
$75.15
6 To 12 in Square 3 Cone Diffuser, White
Zoro.com
$70.85
$75.15
6 To 12 in Square 3 Cone Diffuser, White
Zoro.com
$121.60
Allpoints 12 in Celing Diffuser White Never Rust 3 Cone - Allpoints Part 8018476
Hubert
$121.60
Allpoints 12 in Celing Diffuser White Never Rust 3 Cone - Allpoints Part 8018476
Hubert
$199.00
Air Disc Diffusers With Base MDB12-12- 2 X 12" Diffuser W/ Base By Hakko
ThePondOutlet
30-day returns (most items)
$199.00
Air Disc Diffusers With Base MDB12-12- 2 X 12" Diffuser W/ Base By Hakko
ThePondOutlet
$121.60
Allpoints 12 in Celing Diffuser Never Rust 3 Cone Black - Allpoints Part 8018491
Hubert
$121.60
Allpoints 12 in Celing Diffuser Never Rust 3 Cone Black - Allpoints Part 8018491
Hubert
$29.99
$49.99
BUILDMART - 12" Linear Slot Diffuser - 1 Slot - Single Slot - Black Decorative Air Vent - Modern AC Vent Cover For Ceiling, Walls & Floors - Texas
Vent Cover
40% off
$29.99
$49.99
BUILDMART - 12" Linear Slot Diffuser - 1 Slot - Single Slot - Black Decorative Air Vent - Modern AC Vent Cover For Ceiling, Walls & Floors - Texas
Vent Cover
$79.35
$102.45
Hart & Cooley FPD3R612 24X24 Fixed Pattern T-Bar Diffuser With 12 Inch Duct Collar
Voomi Supply
30-day returns (most items)
22% off
$79.35
$102.45
Hart & Cooley FPD3R612 24X24 Fixed Pattern T-Bar Diffuser With 12 Inch Duct Collar
Voomi Supply
$29.39
Tru Aire Floor Diffuser 4" H X 12" W 1-Way Antique Steel Antique C167-MAB 04X12
DkHardware.com
$29.39
Tru Aire Floor Diffuser 4" H X 12" W 1-Way Antique Steel Antique C167-MAB 04X12
DkHardware.com
$38.85
Tru Aire Floor Diffuser 4" H X 12" W 1-Way Antique Steel Antique C166VAB04X12
DkHardware.com
$38.85
Tru Aire Floor Diffuser 4" H X 12" W 1-Way Antique Steel Antique C166VAB04X12
DkHardware.com
$19.11
Tru Aire Floor Diffuser 2" H X 12" W 1-Way Antique Steel Antique C166VAB02X12
DkHardware.com
$19.11
Tru Aire Floor Diffuser 2" H X 12" W 1-Way Antique Steel Antique C166VAB02X12
DkHardware.com
$80.95
American Louver Stratus Plaque Diffuser With 12" Neck, White, STR-PQ-12W
Global Industrial
1
$80.95
American Louver Stratus Plaque Diffuser With 12" Neck, White, STR-PQ-12W
Global Industrial
$42.95
ACAMINAIRE 3-Way Aluminum Ceiling Diffuser, 12" X 12", White, L-CL 3 m 12X12
Global Industrial
$42.95
ACAMINAIRE 3-Way Aluminum Ceiling Diffuser, 12" X 12", White, L-CL 3 m 12X12
Global Industrial
$121.60
Allpoints 12 in Celing Diffuser Never Rust Plaque White - Allpoints Part 8018496
Hubert
$121.60
Allpoints 12 in Celing Diffuser Never Rust Plaque White - Allpoints Part 8018496
Hubert
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    Shop 12-inch diffusers

    Sponsored
    About our ads
    $57.50
    Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Steel, Square Cone, White Model: 4MJU5
    Grainger
    2
    $57.50
    Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Steel, Square Cone, White Model: 4MJU5
    Grainger
    $62.16
    Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Steel, Square Cone, White Model: 4MJV5
    Grainger
    $62.16
    Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Steel, Square Cone, White Model: 4MJV5
    Grainger
    $62.14
    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
    $62.14
    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
    $87.30
    American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Plastic, Square Cone, White Model: STR-C-12W-FR
    Grainger
    $87.30
    American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Plastic, Square Cone, White Model: STR-C-12W-FR
    Grainger
    $69.95
    Tan Plastic 2'X2' Air Diffuser With 12" Collar American Louver
    1800ceiling.com
    $69.95
    Tan Plastic 2'X2' Air Diffuser With 12" Collar American Louver
    1800ceiling.com
    $71.19
    American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Plastic, Square Plaque, White Model: STR-PQ-12W
    Grainger
    1
    $71.19
    American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Plastic, Square Plaque, White Model: STR-PQ-12W
    Grainger
    $46.27
    Bluefin DF2W12-12 12" X 12" (Wall Opening Size) 4-Way Aluminum Square Ceiling Diffuser (White) | Supplyhouse.Com
    SupplyHouse.com
    1
    $46.27
    Bluefin DF2W12-12 12" X 12" (Wall Opening Size) 4-Way Aluminum Square Ceiling Diffuser (White) | Supplyhouse.Com
    SupplyHouse.com
    $39.99
    $49.99
    BUILDMART - 12X6 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
    Linear Slot Diffusers
    26
    20% off
    $39.99
    $49.99
    BUILDMART - 12X6 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
    $49.99
    BUILDMART - 12 White Inch Linear Slot Diffuser - 1 Slot - Single Slot - Decorative Linear Air - Modern Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
    Texas Buildmart
    40% off
    $29.99
    $49.99
    BUILDMART - 12 White Inch Linear Slot Diffuser - 1 Slot - Single Slot - Decorative Linear Air - Modern Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
    Texas Buildmart
    $21.90
    Bluefin DF3W-12 12" (Wall Opening Size) Round Ceiling Diffuser (White) | Supplyhouse.Com
    SupplyHouse.com
    2
    $21.90
    Bluefin DF3W-12 12" (Wall Opening Size) Round Ceiling Diffuser (White) | Supplyhouse.Com
    SupplyHouse.com
    $49.56
    Bluefin DF1W1212 12" X 12" (Wall Opening Size) 3-Way Aluminum Square Ceiling Diffuser (White) | Supplyhouse.Com
    SupplyHouse.com
    $49.56
    Bluefin DF1W1212 12" X 12" (Wall Opening Size) 3-Way Aluminum Square Ceiling Diffuser (White) | Supplyhouse.Com
    SupplyHouse.com
    $29.99
    $49.99
    BUILDMART - 12 Black Inch Linear Slot Diffuser - 1 Slot - Single Slot - Decorative Linear Air - Modern Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
    Texas Buildmart
    40% off
    $29.99
    $49.99
    BUILDMART - 12 Black Inch Linear Slot Diffuser - 1 Slot - Single Slot - Decorative Linear Air - Modern Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
    Texas Buildmart
    $79.99
    $89.99
    BUILDMART - 12X12 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
    Texas Buildmart
    11% off
    $79.99
    $89.99
    BUILDMART - 12X12 White Modern AC Vent Cover - Decorative Air Vent - Standard Linear Slot Diffuser - Register Grille For Ceiling, Walls & Floors - Texas Buildmart
    Texas Buildmart
    $66.95
    American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Plastic, Square Cone, White Model: STR-C-12W
    Grainger
    7
    $66.95
    American Louver Diffuser: Ceiling, 23 3/4 in H, 23 3/4 in W, Lay-In, 12 in Duct, Plastic, Square Cone, White Model: STR-C-12W
    Grainger
    $49.99
    $59.99
    BUILDMART - 12" Black Linear Slot Diffuser - 3 Slot - Triple Slot - Decorative Air Vent - Modern AC Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
    Linear Slot Diffusers
    16% off
    $49.99
    $59.99
    BUILDMART - 12" Black Linear Slot Diffuser - 3 Slot - Triple Slot - Decorative Air Vent - Modern AC Vent Cover For Ceiling, Walls & Floors - Texas Buildmart
    Linear Slot Diffusers
    $25.48
    RELIABILT 12-In X 12-In Step-Down Steel Sidewall/Ceiling Diffuser In White | 54112WH
    Lowe's
    $25.48
    RELIABILT 12-In X 12-In Step-Down Steel Sidewall/Ceiling Diffuser In White | 54112WH
    Lowe's
    $66.98
    RELIABILT 12-In X 12-In 4-Way Aluminum Sidewall/Ceiling Diffuser In White | 5841212WH
    Lowe's
    $66.98
    RELIABILT 12-In X 12-In 4-Way Aluminum Sidewall/Ceiling Diffuser In White | 5841212WH
    Lowe's
    $46.90
    Aclaminaire 12-In X 12-In 4-Way Aluminum Ceiling Diffuser In White | L-CL 4 m 12X12
    Lowe's
    387
    $46.90
    Aclaminaire 12-In X 12-In 4-Way Aluminum Ceiling Diffuser In White | L-CL 4 m 12X12
    Lowe's