Shop ductwork diffusers

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$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
219
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
219
$119.99
Baseboard Register Diffuser Vent Covers: 12 Pcs 18 Inch Baseboard Diffuser (Duct Opening Size) - Smooth Air Adjust Lever & Easy Install For Home Floor
Amazon.com
3
Free shipping
$119.99
Baseboard Register Diffuser Vent Covers: 12 Pcs 18 Inch Baseboard Diffuser (Duct Opening Size) - Smooth Air Adjust Lever & Easy Install For Home Floor
Amazon.com
3
$52.25
HVAC Premium 14''W X 4''H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - White [Outer
Amazon.com
1
Free shipping
$52.25
HVAC Premium 14''W X 4''H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - White [Outer
Amazon.com
1
$97.48
HVAC Premium 18W X 18H 4Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser Vertical Horizontal Direction Vent Duct Cover [Outer Dimensions
Amazon.com
1K+
Free shipping
$97.48
HVAC Premium 18W X 18H 4Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser Vertical Horizontal Direction Vent Duct Cover [Outer Dimensions
Amazon.com
1K+
$89.99
Filtered Air System For 2'X2' Air Diffuser 1800Ceiling.Com
1800ceiling.com
$89.99
Filtered Air System For 2'X2' Air Diffuser 1800Ceiling.Com
1800ceiling.com
$58.00
Havaco 2'X2' Lay-In 3 Cone Supply With 12" Pre-Molded Boot, ABS Plastic Supply Grille, Ceiling Diffuser For Air Vent, Ideal For Heating, Cooling, And
Amazon.com
243
Free shipping
$58.00
Havaco 2'X2' Lay-In 3 Cone Supply With 12" Pre-Molded Boot, ABS Plastic Supply Grille, Ceiling Diffuser For Air Vent, Ideal For Heating, Cooling, And
Amazon.com
243
$48.96
HVAC Premium 10''W X 10''H Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - Full Control Vertical/Horizontal Airflow Direction - Vent
Amazon.com
125
Free shipping
$48.96
HVAC Premium 10''W X 10''H Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - Full Control Vertical/Horizontal Airflow Direction - Vent
Amazon.com
125
$44.13
1'X1' Square Standard 4-Way Plastic Air Vent Rectorseal
1800ceiling.com
$44.13
1'X1' Square Standard 4-Way Plastic Air Vent Rectorseal
1800ceiling.com
$58.00
Havaco 2'X2' Lay-In 3 Cone Supply With 6" Pre-Molded Boot, ABS Plastic Supply Grille, Ceiling Diffuser For Air Vent, Ideal For Heating, Cooling, And
Amazon.com
219
Free shipping
$58.00
Havaco 2'X2' Lay-In 3 Cone Supply With 6" Pre-Molded Boot, ABS Plastic Supply Grille, Ceiling Diffuser For Air Vent, Ideal For Heating, Cooling, And
Amazon.com
219
$22.95
8" X 8" Adjustable Blade Sidewall Ceiling Register Vent Cover Diffuser Heavy Duty Stamped Steel (Listed Size Is For Duct Opening Or Inside Measurement
Amazon.com
14
$22.95
8" X 8" Adjustable Blade Sidewall Ceiling Register Vent Cover Diffuser Heavy Duty Stamped Steel (Listed Size Is For Duct Opening Or Inside Measurement
Amazon.com
14
$63.53
HVAC Premium 12'' Round Ceiling Diffuser - Easy Air Flow - HVAC Vent Duct Cover [White] - [Outer Dimensions: 16'']
Amazon.com
Free shipping
$63.53
HVAC Premium 12'' Round Ceiling Diffuser - Easy Air Flow - HVAC Vent Duct Cover [White] - [Outer Dimensions: 16'']
Amazon.com
Free shipping
$57.79
1'X1' White Plastic Antique Diffuser With Damper, (MVAW) By Rectorseal Airtec
1800ceiling.com
$57.79
1'X1' White Plastic Antique Diffuser With Damper, (MVAW) By Rectorseal Airtec
1800ceiling.com
$43.91
GREEN VENT Modern Air Vent Cover 8X8 (Duct Opening) - Decorative White Aluminum Linear Slot Diffuser For Wall, Ceiling, Floor Register - Quiet
Amazon.com
138
Free shipping
$43.91
GREEN VENT Modern Air Vent Cover 8X8 (Duct Opening) - Decorative White Aluminum Linear Slot Diffuser For Wall, Ceiling, Floor Register - Quiet
Amazon.com
138
$22.49
10X8 Supply Air Vent Cover 3-Way Grille For Wall Or Ceiling Duct Opening - Adjustable Register Air Diffuser Grill By HVAC Premium - White - Overall
Amazon.com
9
$22.49
10X8 Supply Air Vent Cover 3-Way Grille For Wall Or Ceiling Duct Opening - Adjustable Register Air Diffuser Grill By HVAC Premium - White - Overall
Amazon.com
9
$99.99
$139.99
BUILDMART - 72" Mud-In Linear Slot Diffuser - 1 Slot - Air Vent Cover - Drywall MUD IN White Air Vent - MUD Linear Slot Diffuser - Register Grille For Ceiling And Walls - Texas Buildmart
Linear Slot Diffusers
28% off
$99.99
$139.99
BUILDMART - 72" Mud-In Linear Slot Diffuser - 1 Slot - Air Vent Cover - Drywall MUD IN White Air Vent - MUD Linear Slot Diffuser - Register Grille For Ceiling And Walls - Texas Buildmart
Linear Slot Diffusers
$26.69
PATIKIL 6 Inch Round Air Vent, 1Pcs ABS Adjustable Soffit Exhaust Vent Cover Ceiling Wall Air Diffuser For Home Living Room Kitchen Office Inline Duct
Amazon.com
5
$26.69
PATIKIL 6 Inch Round Air Vent, 1Pcs ABS Adjustable Soffit Exhaust Vent Cover Ceiling Wall Air Diffuser For Home Living Room Kitchen Office Inline Duct
Amazon.com
5
$28.95
12" X 6" Adjustable Blade Sidewall Ceiling Register Vent Cover Diffuser Heavy Duty Stamped Steel (Listed Size Is For Duct Opening Or Inside
Amazon.com
27
$28.95
12" X 6" Adjustable Blade Sidewall Ceiling Register Vent Cover Diffuser Heavy Duty Stamped Steel (Listed Size Is For Duct Opening Or Inside
Amazon.com
27
$35.99
Honeydak 2 Pack Baseboard Vent Covers 14" X 6" Duct Opening Size Steel Triangular Baseboard Return Air Grille, Air Register Vent Cover Grill Diffuser
Amazon.com
1
Free shipping
$35.99
Honeydak 2 Pack Baseboard Vent Covers 14" X 6" Duct Opening Size Steel Triangular Baseboard Return Air Grille, Air Register Vent Cover Grill Diffuser
Amazon.com
1
$18.90
10" X 8" Adjustable Blade Sidewall Ceiling Register Vent Cover Diffuser Heavy Duty Stamped Steel (Listed Size Is For Duct Opening Or Inside
Amazon.com
208
$18.90
10" X 8" Adjustable Blade Sidewall Ceiling Register Vent Cover Diffuser Heavy Duty Stamped Steel (Listed Size Is For Duct Opening Or Inside
Amazon.com
208
$79.99
Glooglitter 2 Pcs 18 Inch Wooden Baseboard Register Vent Diffuser Finished Floor Vent Cover Decorative Red Oak Baseboard Air Supply HVAC For Home
Amazon.com
12
Free shipping
$79.99
Glooglitter 2 Pcs 18 Inch Wooden Baseboard Register Vent Diffuser Finished Floor Vent Cover Decorative Red Oak Baseboard Air Supply HVAC For Home
Amazon.com
12
$58.99
Yaocom 4 Pcs Baseboard Register Vent 15 Inch Duct Opening Size Baseboard Vent Covers Diffuser Adjustable Corner Return Air Grille For Home Floor Wall
Amazon.com
42
Free shipping
$58.99
Yaocom 4 Pcs Baseboard Register Vent 15 Inch Duct Opening Size Baseboard Vent Covers Diffuser Adjustable Corner Return Air Grille For Home Floor Wall
Amazon.com
42
$187.99
LB White End Diffuser Kit For 8 in Duct - 500-132541
Acme Tools
$187.99
LB White End Diffuser Kit For 8 in Duct - 500-132541
Acme Tools
$12.95
RV And Home White Stamped Steel Floor Diffuser/Register With Damper 12" X 2" (Duct Opening Size) Outside Dimension 13.5"X 3.75"
Amazon.com
50
$12.95
RV And Home White Stamped Steel Floor Diffuser/Register With Damper 12" X 2" (Duct Opening Size) Outside Dimension 13.5"X 3.75"
Amazon.com
50
$39.29
$42.02
Fits 12X6 Duct Opening | Steel Baseboard Air Supply Grille With Multi-Shutter Damper By Handua | Air Register Vent Cover Grill | White | Outer
Amazon.com
12
Free shipping
$39.29
$42.02
Fits 12X6 Duct Opening | Steel Baseboard Air Supply Grille With Multi-Shutter Damper By Handua | Air Register Vent Cover Grill | White | Outer
Amazon.com
12
$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
$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
$8.35
$9.82
EZ-FLO 10 X 6 Inch (Duct Opening) Air Vent Cover For Wall Or Ceiling, Three-Way Ventilation Register, Solid Steel HVAC Register Cover, White, 61614
Amazon.com
474
14% off
$8.35
$9.82
EZ-FLO 10 X 6 Inch (Duct Opening) Air Vent Cover For Wall Or Ceiling, Three-Way Ventilation Register, Solid Steel HVAC Register Cover, White, 61614
Amazon.com
474
$15.95
Three-Way Plastic Side Wall/Ceiling Register In White 14"W X 6"H For Duct Opening (Outside Dimension Is 15.75"W X 8"H)
Amazon.com
301
$15.95
Three-Way Plastic Side Wall/Ceiling Register In White 14"W X 6"H For Duct Opening (Outside Dimension Is 15.75"W X 8"H)
Amazon.com
301
$99.99
Yaocom 4 Pack 18 Inch Baseboard Register Duct Opening Size Vent Covers For Home Floor Wall Baseboard Air Vent Covers Supply Floor Baseboard Diffuser,
Amazon.com
51
Free shipping
$99.99
Yaocom 4 Pack 18 Inch Baseboard Register Duct Opening Size Vent Covers For Home Floor Wall Baseboard Air Vent Covers Supply Floor Baseboard Diffuser,
Amazon.com
51
$51.99
Therwen 2 Set 6 Inch Round Vent Cover Ceiling Diffuser HVAC Vent Duct Cover Replacement With Steel Butterfly Damper Fitting In 6 Inch Duct, Outer
Amazon.com
9
Free shipping
$51.99
Therwen 2 Set 6 Inch Round Vent Cover Ceiling Diffuser HVAC Vent Duct Cover Replacement With Steel Butterfly Damper Fitting In 6 Inch Duct, Outer
Amazon.com
9
$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
$59.99
4 Pack 18 Inch Baseboard Register Vent Covers - White HVAC Diffuser For Floor/Wall Duct Openings - Cold Rolled Steel Air Vent Cover With Adjustable
Amazon.com
1
Free shipping
$59.99
4 Pack 18 Inch Baseboard Register Vent Covers - White HVAC Diffuser For Floor/Wall Duct Openings - Cold Rolled Steel Air Vent Cover With Adjustable
Amazon.com
1
$25.99
AC Infinity Wall-Mount Duct Grille Vent For 8-Inch Ducting, White Metal, Heating Cooling Ventilation And Exhaust
Amazon.com
128
$25.99
AC Infinity Wall-Mount Duct Grille Vent For 8-Inch Ducting, White Metal, Heating Cooling Ventilation And Exhaust
Amazon.com
128
$8.26
$8.89
EZ-FLO 8 X 8 Inch (Duct Opening) Air Vent Cover For Wall Or Ceiling, Four-Way Ventilation Register, Solid Steel HVAC Register Cover, White, 61618
Amazon.com
291
$8.26
$8.89
EZ-FLO 8 X 8 Inch (Duct Opening) Air Vent Cover For Wall Or Ceiling, Four-Way Ventilation Register, Solid Steel HVAC Register Cover, White, 61618
Amazon.com
291
$176.96
HART & COOLEY USVH31206SA Aluminum Universal Double Deflection Spiral Diffuser 12 X 6 in
Voomi Supply
30-day returns (most items)
$176.96
HART & COOLEY USVH31206SA Aluminum Universal Double Deflection Spiral Diffuser 12 X 6 in
Voomi Supply
30-day returns
$46.98
Cuchiilo 5 Inch 25 Feet Insulated Flexible Duct R4.2,5 Inch Insulated Flexible Duct,5 Insulated Flexible Duct,5 Flexible Duct,5 Insulated Duct,For
Amazon.com
88
Free shipping
$46.98
Cuchiilo 5 Inch 25 Feet Insulated Flexible Duct R4.2,5 Inch Insulated Flexible Duct,5 Insulated Flexible Duct,5 Flexible Duct,5 Insulated Duct,For
Amazon.com
88
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    Shop ductwork diffusers

    Sponsored
    About our ads
    $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
    219
    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
    219
    $119.99
    Baseboard Register Diffuser Vent Covers: 12 Pcs 18 Inch Baseboard Diffuser (Duct Opening Size) - Smooth Air Adjust Lever & Easy Install For Home Floor
    Amazon.com
    3
    Free shipping
    $119.99
    Baseboard Register Diffuser Vent Covers: 12 Pcs 18 Inch Baseboard Diffuser (Duct Opening Size) - Smooth Air Adjust Lever & Easy Install For Home Floor
    Amazon.com
    3
    $52.25
    HVAC Premium 14''W X 4''H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - White [Outer
    Amazon.com
    1
    Free shipping
    $52.25
    HVAC Premium 14''W X 4''H Adjustable AIR Supply Diffuser - HVAC Vent Cover Sidewall Or Ceiling - Grille Register - High Airflow - White [Outer
    Amazon.com
    1
    $97.48
    HVAC Premium 18W X 18H 4Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser Vertical Horizontal Direction Vent Duct Cover [Outer Dimensions
    Amazon.com
    1K+
    Free shipping
    $97.48
    HVAC Premium 18W X 18H 4Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser Vertical Horizontal Direction Vent Duct Cover [Outer Dimensions
    Amazon.com
    1K+
    $89.99
    Filtered Air System For 2'X2' Air Diffuser 1800Ceiling.Com
    1800ceiling.com
    $89.99
    Filtered Air System For 2'X2' Air Diffuser 1800Ceiling.Com
    1800ceiling.com
    $58.00
    Havaco 2'X2' Lay-In 3 Cone Supply With 12" Pre-Molded Boot, ABS Plastic Supply Grille, Ceiling Diffuser For Air Vent, Ideal For Heating, Cooling, And
    Amazon.com
    243
    Free shipping
    $58.00
    Havaco 2'X2' Lay-In 3 Cone Supply With 12" Pre-Molded Boot, ABS Plastic Supply Grille, Ceiling Diffuser For Air Vent, Ideal For Heating, Cooling, And
    Amazon.com
    243
    $48.96
    HVAC Premium 10''W X 10''H Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - Full Control Vertical/Horizontal Airflow Direction - Vent
    Amazon.com
    125
    Free shipping
    $48.96
    HVAC Premium 10''W X 10''H Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - Full Control Vertical/Horizontal Airflow Direction - Vent
    Amazon.com
    125
    $44.13
    1'X1' Square Standard 4-Way Plastic Air Vent Rectorseal
    1800ceiling.com
    $44.13
    1'X1' Square Standard 4-Way Plastic Air Vent Rectorseal
    1800ceiling.com
    $58.00
    Havaco 2'X2' Lay-In 3 Cone Supply With 6" Pre-Molded Boot, ABS Plastic Supply Grille, Ceiling Diffuser For Air Vent, Ideal For Heating, Cooling, And
    Amazon.com
    219
    Free shipping
    $58.00
    Havaco 2'X2' Lay-In 3 Cone Supply With 6" Pre-Molded Boot, ABS Plastic Supply Grille, Ceiling Diffuser For Air Vent, Ideal For Heating, Cooling, And
    Amazon.com
    219
    $22.95
    8" X 8" Adjustable Blade Sidewall Ceiling Register Vent Cover Diffuser Heavy Duty Stamped Steel (Listed Size Is For Duct Opening Or Inside Measurement
    Amazon.com
    14
    $22.95
    8" X 8" Adjustable Blade Sidewall Ceiling Register Vent Cover Diffuser Heavy Duty Stamped Steel (Listed Size Is For Duct Opening Or Inside Measurement
    Amazon.com
    14
    $63.53
    HVAC Premium 12'' Round Ceiling Diffuser - Easy Air Flow - HVAC Vent Duct Cover [White] - [Outer Dimensions: 16'']
    Amazon.com
    Free shipping
    $63.53
    HVAC Premium 12'' Round Ceiling Diffuser - Easy Air Flow - HVAC Vent Duct Cover [White] - [Outer Dimensions: 16'']
    Amazon.com
    Free shipping
    $57.79
    1'X1' White Plastic Antique Diffuser With Damper, (MVAW) By Rectorseal Airtec
    1800ceiling.com
    $57.79
    1'X1' White Plastic Antique Diffuser With Damper, (MVAW) By Rectorseal Airtec
    1800ceiling.com
    $43.91
    GREEN VENT Modern Air Vent Cover 8X8 (Duct Opening) - Decorative White Aluminum Linear Slot Diffuser For Wall, Ceiling, Floor Register - Quiet
    Amazon.com
    138
    Free shipping
    $43.91
    GREEN VENT Modern Air Vent Cover 8X8 (Duct Opening) - Decorative White Aluminum Linear Slot Diffuser For Wall, Ceiling, Floor Register - Quiet
    Amazon.com
    138
    $22.49
    10X8 Supply Air Vent Cover 3-Way Grille For Wall Or Ceiling Duct Opening - Adjustable Register Air Diffuser Grill By HVAC Premium - White - Overall
    Amazon.com
    9
    $22.49
    10X8 Supply Air Vent Cover 3-Way Grille For Wall Or Ceiling Duct Opening - Adjustable Register Air Diffuser Grill By HVAC Premium - White - Overall
    Amazon.com
    9
    $99.99
    $139.99
    BUILDMART - 72" Mud-In Linear Slot Diffuser - 1 Slot - Air Vent Cover - Drywall MUD IN White Air Vent - MUD Linear Slot Diffuser - Register Grille For Ceiling And Walls - Texas Buildmart
    Linear Slot Diffusers
    28% off
    $99.99
    $139.99
    BUILDMART - 72" Mud-In Linear Slot Diffuser - 1 Slot - Air Vent Cover - Drywall MUD IN White Air Vent - MUD Linear Slot Diffuser - Register Grille For Ceiling And Walls - Texas Buildmart
    Linear Slot Diffusers
    $26.69
    PATIKIL 6 Inch Round Air Vent, 1Pcs ABS Adjustable Soffit Exhaust Vent Cover Ceiling Wall Air Diffuser For Home Living Room Kitchen Office Inline Duct
    Amazon.com
    5
    $26.69
    PATIKIL 6 Inch Round Air Vent, 1Pcs ABS Adjustable Soffit Exhaust Vent Cover Ceiling Wall Air Diffuser For Home Living Room Kitchen Office Inline Duct
    Amazon.com
    5
    $28.95
    12" X 6" Adjustable Blade Sidewall Ceiling Register Vent Cover Diffuser Heavy Duty Stamped Steel (Listed Size Is For Duct Opening Or Inside
    Amazon.com
    27
    $28.95
    12" X 6" Adjustable Blade Sidewall Ceiling Register Vent Cover Diffuser Heavy Duty Stamped Steel (Listed Size Is For Duct Opening Or Inside
    Amazon.com
    27
    $35.99
    Honeydak 2 Pack Baseboard Vent Covers 14" X 6" Duct Opening Size Steel Triangular Baseboard Return Air Grille, Air Register Vent Cover Grill Diffuser
    Amazon.com
    1
    Free shipping
    $35.99
    Honeydak 2 Pack Baseboard Vent Covers 14" X 6" Duct Opening Size Steel Triangular Baseboard Return Air Grille, Air Register Vent Cover Grill Diffuser
    Amazon.com
    1