Shop HVAC Air Return Adjustable Diffusers

Sponsored
About our ads
$118.50
$131.67
20" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
10% off
$118.50
$131.67
20" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$83.46
$92.73
24"W X 26"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 25.75"W X 27.75"H] White - HVAC Premium
HVAC Premium
$83.46
$92.73
24"W X 26"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 25.75"W X 27.75"H] White - HVAC Premium
HVAC Premium
$193.29
$214.77
20" X 16" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
10% off
$193.29
$214.77
20" X 16" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$28.61
$31.79
10" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling Black Steel - HVAC Premium
HVAC Premium
10% off
$28.61
$31.79
10" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling Black Steel - HVAC Premium
HVAC Premium
$129.09
$143.43
24" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$129.09
$143.43
24" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$154.99
9-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 22X18
Cryptic Air - Merchant Center
$154.99
9-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 22X18
Cryptic Air - Merchant Center
$101.86
$113.18
16" X 14" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
10% off
$101.86
$113.18
16" X 14" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$170.00
$188.89
24" X 14" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
10% off
$170.00
$188.89
24" X 14" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$77.99
2-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 42X4
Cryptic Air - Merchant Center
$77.99
2-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 42X4
Cryptic Air - Merchant Center
$35.72
$39.69
6" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
10% off
$35.72
$39.69
6" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$54.89
$60.99
14" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
10% off
$54.89
$60.99
14" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$73.93
$82.14
24"W X 6"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 25.6"W X 7.6"H] White - HVAC Premium
HVAC Premium
$73.93
$82.14
24"W X 6"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 25.6"W X 7.6"H] White - HVAC Premium
HVAC Premium
$47.54
$52.82
14" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling Black Steel - HVAC Premium
HVAC Premium
$47.54
$52.82
14" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling Black Steel - HVAC Premium
HVAC Premium
$70.88
$78.76
18" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
10% off
$70.88
$78.76
18" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$32.22
$35.80
10" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling Black Steel - HVAC Premium
HVAC Premium
$32.22
$35.80
10" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling Black Steel - HVAC Premium
HVAC Premium
$45.99
3-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 16X6
Cryptic Air - Merchant Center
$45.99
3-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 16X6
Cryptic Air - Merchant Center
$54.65
$60.72
16" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$54.65
$60.72
16" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$27.26
$30.29
6"W X 6"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 7.6"W X 7.6"H] White - HVAC Premium
HVAC Premium
10% off
$27.26
$30.29
6"W X 6"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 7.6"W X 7.6"H] White - HVAC Premium
HVAC Premium
$84.49
$93.88
14"W X 14"H [Duct Opening] 4-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 15.75"W X 15.75"H] White - HVAC Premium
HVAC Premium
10% off
$84.49
$93.88
14"W X 14"H [Duct Opening] 4-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 15.75"W X 15.75"H] White - HVAC Premium
HVAC Premium
$46.75
$51.94
14"W X 6"H [Duct Opening] 3-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 15.75"W X 7.75"H] White - HVAC Premium
HVAC Premium
$46.75
$51.94
14"W X 6"H [Duct Opening] 3-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 15.75"W X 7.75"H] White - HVAC Premium
HVAC Premium
$46.99
1-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 30X2
Cryptic Air - Merchant Center
$46.99
1-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 30X2
Cryptic Air - Merchant Center
$169.19
2025 Upgraded 3500 Sq.Ft Smart Scent Diffuser - HVAC System, Whole House Aroma & Hotel Collection Diffuser, Waterless Essential Oil Diffuser For Home
Amazon.com
Free shipping
$169.19
2025 Upgraded 3500 Sq.Ft Smart Scent Diffuser - HVAC System, Whole House Aroma & Hotel Collection Diffuser, Waterless Essential Oil Diffuser For Home
Amazon.com
$110.99
4-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 36X8
Cryptic Air - Merchant Center
$110.99
4-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 36X8
Cryptic Air - Merchant Center
$71.42
$79.36
24"W X 14"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 25.75"W X 15.75"H] Brown - HVAC Premium
HVAC Premium
10% off
$71.42
$79.36
24"W X 14"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 25.75"W X 15.75"H] Brown - HVAC Premium
HVAC Premium
$1,821.80
$1,971.36
Four Way Angled Face Concentric Diffuser 16.5" / 3.5" / 14" / 30" X 13" / 18" X 18" / 18" X 5" / 1000 - 2500
Advantage Mechanical Supply
$1,821.80
$1,971.36
Four Way Angled Face Concentric Diffuser 16.5" / 3.5" / 14" / 30" X 13" / 18" X 18" / 18" X 5" / 1000 - 2500
Advantage Mechanical Supply
$195.49
11-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 22X22
Cryptic Air - Merchant Center
$195.49
11-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 22X22
Cryptic Air - Merchant Center
$271.99
10-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 36X20
Cryptic Air - Merchant Center
$271.99
10-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 36X20
Cryptic Air - Merchant Center
$42.71
$47.46
12" X 6" [Duct Opening] 3-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 13.75"W X 7.75
HVAC Premium
10% off
$42.71
$47.46
12" X 6" [Duct Opening] 3-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 13.75"W X 7.75
HVAC Premium
$31.00
$34.44
16"W X 6"H Aluminum Adjustable Return/Supply HVAC Air Grille White - HVAC Premium
HVAC Premium
$31.00
$34.44
16"W X 6"H Aluminum Adjustable Return/Supply HVAC Air Grille White - HVAC Premium
HVAC Premium
$64.99
Yaocom 4 Pcs Baseboard Register Vent 18 Inch Duct Opening Size Baseboard Vent Covers Baseboard Diffuser Adjustable Corner Baseboard Return Air Grille
Amazon.com
Free shipping
$64.99
Yaocom 4 Pcs Baseboard Register Vent 18 Inch Duct Opening Size Baseboard Vent Covers Baseboard Diffuser Adjustable Corner Baseboard Return Air Grille
Amazon.com
$77.99
7-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 14X14
Cryptic Air - Merchant Center
$77.99
7-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 14X14
Cryptic Air - Merchant Center
$134.99
5-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 36X10
Cryptic Air - Merchant Center
$134.99
5-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 36X10
Cryptic Air - Merchant Center
$169.99
2025 Upgraded 3500 Sq.Ft Smart Scent Diffuser - HVAC System, Whole House Aroma & Hotel Collection Diffuser, Waterless Essential Oil Diffuser For Home
Amazon.com
Free shipping
$169.99
2025 Upgraded 3500 Sq.Ft Smart Scent Diffuser - HVAC System, Whole House Aroma & Hotel Collection Diffuser, Waterless Essential Oil Diffuser For Home
Amazon.com
$93.19
$103.54
28"W X 26"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 29.75"W X 27.75"H] White - HVAC Premium
HVAC Premium
$93.19
$103.54
28"W X 26"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 29.75"W X 27.75"H] White - HVAC Premium
HVAC Premium
$19.55
Engera Adjustable Double Deflection HVAC Air Register-Supply Air Diffuser Air Vent Register-Heating/AC Vent Cover-Wall Register 14X6duct - MT
mrstreak.com
$19.55
Engera Adjustable Double Deflection HVAC Air Register-Supply Air Diffuser Air Vent Register-Heating/AC Vent Cover-Wall Register 14X6duct - MT
mrstreak.com
$54.67
$60.74
12"W X 18"H Aluminum Adjustable Return/Supply HVAC Air Grille - FULL CONTROL HORIZONTAL AIRFLOW DIRECTION White - HVAC Premium
HVAC Premium
$54.67
$60.74
12"W X 18"H Aluminum Adjustable Return/Supply HVAC Air Grille - FULL CONTROL HORIZONTAL AIRFLOW DIRECTION White - HVAC Premium
HVAC Premium
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Shop HVAC Air Return Adjustable Diffusers

Sponsored
About our ads
$118.50
$131.67
20" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
10% off
$118.50
$131.67
20" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$83.46
$92.73
24"W X 26"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 25.75"W X 27.75"H] White - HVAC Premium
HVAC Premium
$83.46
$92.73
24"W X 26"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 25.75"W X 27.75"H] White - HVAC Premium
HVAC Premium
$193.29
$214.77
20" X 16" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
10% off
$193.29
$214.77
20" X 16" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$28.61
$31.79
10" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling Black Steel - HVAC Premium
HVAC Premium
10% off
$28.61
$31.79
10" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling Black Steel - HVAC Premium
HVAC Premium
$129.09
$143.43
24" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$129.09
$143.43
24" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$154.99
9-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 22X18
Cryptic Air - Merchant Center
$154.99
9-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 22X18
Cryptic Air - Merchant Center
$101.86
$113.18
16" X 14" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
10% off
$101.86
$113.18
16" X 14" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$170.00
$188.89
24" X 14" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
10% off
$170.00
$188.89
24" X 14" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$77.99
2-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 42X4
Cryptic Air - Merchant Center
$77.99
2-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 42X4
Cryptic Air - Merchant Center
$35.72
$39.69
6" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
10% off
$35.72
$39.69
6" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$54.89
$60.99
14" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
10% off
$54.89
$60.99
14" X 10" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$73.93
$82.14
24"W X 6"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 25.6"W X 7.6"H] White - HVAC Premium
HVAC Premium
$73.93
$82.14
24"W X 6"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 25.6"W X 7.6"H] White - HVAC Premium
HVAC Premium
$47.54
$52.82
14" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling Black Steel - HVAC Premium
HVAC Premium
$47.54
$52.82
14" X 8" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling Black Steel - HVAC Premium
HVAC Premium
$70.88
$78.76
18" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
10% off
$70.88
$78.76
18" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$32.22
$35.80
10" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling Black Steel - HVAC Premium
HVAC Premium
$32.22
$35.80
10" X 6" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling Black Steel - HVAC Premium
HVAC Premium
$45.99
3-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 16X6
Cryptic Air - Merchant Center
$45.99
3-Slot Linear Slot Diffuser | Aluminum HVAC Vent | Cryptic Air 16X6
Cryptic Air - Merchant Center
$54.65
$60.72
16" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$54.65
$60.72
16" X 4" ADJUSTABLE AIR SUPPLY DIFFUSER - HVAC Vent Duct Cover Sidewall Or Ceiling White Steel - HVAC Premium
HVAC Premium
$27.26
$30.29
6"W X 6"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 7.6"W X 7.6"H] White - HVAC Premium
HVAC Premium
10% off
$27.26
$30.29
6"W X 6"H [Duct Opening] Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - [Outer Dimensions: 7.6"W X 7.6"H] White - HVAC Premium
HVAC Premium

  • Top 5 Best Hvac Diffusers - Smart Diffuser

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    About our ads
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  • Diffusers, HVAC, Vents and Grilles

    https://www.supplyhouse.com
    About our ads
    SponsoredShop Like a Pro from Our Selection of Heating Supplies and Products at Great Prices Tod…
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