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$179.99
BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - (1 Slot) Single Slot] Premium Insulated Galvanized Sheet Metal Plenum Box For Heating And
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BUILDMART - 12" Plenum Box For [12" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
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Garvin 52181-Svt 4" Sq Chicago Plenum Air Tight Junction Box 3" Deep (8) 1/2" & (4) 3/4" Side Ko's
New Feedonomics Feed - ARC 8/12/2025
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Garvin 52181-Svt 4" Sq Chicago Plenum Air Tight Junction Box 3" Deep (8) 1/2" & (4) 3/4" Side Ko's
New Feedonomics Feed - ARC 8/12/2025
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Garvin 52171-1-Vt 4" Sq Chicago Plenum Air Tight Junction Box Drawn 2-1/8" Deep (8) 1" Side Ko's
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New Feedonomics Feed - ARC 8/12/2025
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Raco 231Pl 4" Square Plenum Box 2-1/8 Deep 3/4" Ko
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BUILDMART - 48 Inch Plenum Box For [48 Inch Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas
Texas Buildmart
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Raco 265Pl 4-11/16" Plenum Box 3/4-1 Ko
New Feedonomics Feed - ARC 8/12/2025
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New Feedonomics Feed - ARC 8/12/2025
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New Feedonomics Feed - ARC 8/12/2025
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Raco 258Pl 4-11/16" Plenum Box 1 Ko
New Feedonomics Feed - ARC 8/12/2025
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Raco 258Pl 4-11/16" Plenum Box 1 Ko
New Feedonomics Feed - ARC 8/12/2025
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Copkim 8 Set 4 X 2 Inch Electrical Junction Box With Cover Square Plenum Box Galvanized Steel Metal Outlet Boxes, Ten 1/2'' Knockouts, 1-7/8" Deep,
Amazon.com
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$39.99
Copkim 8 Set 4 X 2 Inch Electrical Junction Box With Cover Square Plenum Box Galvanized Steel Metal Outlet Boxes, Ten 1/2'' Knockouts, 1-7/8" Deep,
Amazon.com
21
$411.25
Raco 165Pl 4 Octagon Plenum Box 2-1/8 Deep 1/2-3/4" Ko
New Feedonomics Feed - ARC 8/12/2025
$411.25
Raco 165Pl 4 Octagon Plenum Box 2-1/8 Deep 1/2-3/4" Ko
New Feedonomics Feed - ARC 8/12/2025
$166.43
$209.99
Oxbox Heat Pump Supply Plenum
eFireplaceStore
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$166.43
$209.99
Oxbox Heat Pump Supply Plenum
eFireplaceStore
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Return Air Plenum, 20 X 20" Not For Filter And Round 14" Collar. Hvac. Return Air Filter Rack Plenum. Plenums & Filter Boxes.
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BUILDMART - 72" 1 Slot Plenum Linear Slot Plenum - Single Slot, Premium Insulated Plenum Box / Size: 12" H X 2" W X 72" L 12.0 H X 4.0 W In
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BUILDMART - 36" 3 Slot Plenum Linear Slot Plenum - Triple Slot, Premium Insulated Plenum Box / Size: 12" H X 5" W X 36" L 2.0 H X 7.0 W In Grayaluminum
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BUILDMART - 36" 3 Slot Plenum Linear Slot Plenum - Triple Slot, Premium Insulated Plenum Box / Size: 12" H X 5" W X 36" L 2.0 H X 7.0 W In Grayaluminum
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Buildmart - 36" Plenum Box For [36" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling
Walmart
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Walmart
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Return Air Plenum, 16X24 Not For Filter And Round 16" Collar,Hvac. Return Air Filter Rack Plenum. Plenums & Filter Boxes.
eBay.com
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Return Air Plenum, 16X24 Not For Filter And Round 16" Collar,Hvac. Return Air Filter Rack Plenum. Plenums & Filter Boxes.
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Walmart
2
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Walmart
2
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Return Air Plenum For Filter 25X16x1" And Round 12" Collar Hvac Duct. Shop Made. Plenums & Filter Boxes.
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Wayfair
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Wayfair
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Garvin 52151-Svt 4" Sq Chicago Plenum Junction Box 1-1/2" Deep 1/2" And 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$2.59
Garvin 52151-Svt 4" Sq Chicago Plenum Junction Box 1-1/2" Deep 1/2" And 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$419.00
Supply And Return Plenum Kit 80G36h/Fb2128 W/ Box And Filter Rack 21"
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25.5 X 17.5 X 3 With 16" Collar HVAC RETURN AIR Box PLENUM GALVANIZED 26 GAUGE
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Supply AIR Duct Plenum 14" X 14" X 23" Long With 1/2 Flange Made From 26 Gauge. DUCTWORKFORSALE.COM. Silver. Plenum & Filter Boxes.
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22X25X23.5 W/Filter Rack Return Air Duct Plenum-26 Gauge, Hvac Duct Work. Tinman. Plenum & Filter Boxes.
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14 X 25 X 36 Hvac Supply/Return AIR Ductwork Plenum Galvanized 26 Gauge. Tinman. Plenum & Filter Boxes.
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BUILDMART - 12" 2 Slot Plenum Linear Slot Plenum - Double Slot, Premium Insulated Plenum Box / Size: 12" H X 3.5" W X 12" L 12.0 H X 5.0 W In Grayaluminum
Wayfair
8
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$124.99
BUILDMART - 12" 2 Slot Plenum Linear Slot Plenum - Double Slot, Premium Insulated Plenum Box / Size: 12" H X 3.5" W X 12" L 12.0 H X 5.0 W In Grayaluminum
Wayfair
8
How To: Fabricate A Plenum Box With BASIC Hand Tools | HVAC Ductwork
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Find in video from 06:23Assembling the Box
How To: Fabricate A Plenum Box With BASIC Hand Tools | HVAC Ductwork
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9:03
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$251.25
Raco 258Pl 4-11/16" Plenum Box 1 Ko
New Feedonomics Feed - ARC 8/12/2025
$251.25
Raco 258Pl 4-11/16" Plenum Box 1 Ko
New Feedonomics Feed - ARC 8/12/2025
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Copkim 8 Set 4 X 2 Inch Electrical Junction Box With Cover Square Plenum Box Galvanized Steel Metal Outlet Boxes, Ten 1/2'' Knockouts, 1-7/8" Deep,
Amazon.com
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Copkim 8 Set 4 X 2 Inch Electrical Junction Box With Cover Square Plenum Box Galvanized Steel Metal Outlet Boxes, Ten 1/2'' Knockouts, 1-7/8" Deep,
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Raco 165Pl 4 Octagon Plenum Box 2-1/8 Deep 1/2-3/4" Ko
New Feedonomics Feed - ARC 8/12/2025
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New Feedonomics Feed - ARC 8/12/2025
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Oxbox Heat Pump Supply Plenum
eFireplaceStore
20% off
$166.43
$209.99
Oxbox Heat Pump Supply Plenum
eFireplaceStore
$157.47
Return Air Plenum, 20 X 20" Not For Filter And Round 14" Collar. Hvac. Return Air Filter Rack Plenum. Plenums & Filter Boxes.
eBay.com
Free shipping
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Return Air Plenum, 20 X 20" Not For Filter And Round 14" Collar. Hvac. Return Air Filter Rack Plenum. Plenums & Filter Boxes.
eBay.com
$368.99
BUILDMART - 72" 1 Slot Plenum Linear Slot Plenum - Single Slot, Premium Insulated Plenum Box / Size: 12" H X 2" W X 72" L 12.0 H X 4.0 W In
Wayfair
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Wayfair
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BUILDMART - 36" 3 Slot Plenum Linear Slot Plenum - Triple Slot, Premium Insulated Plenum Box / Size: 12" H X 5" W X 36" L 2.0 H X 7.0 W In Grayaluminum
Wayfair
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Buildmart - 36" Plenum Box For [36" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling
Walmart
15
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Buildmart - 36" Plenum Box For [36" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling
Walmart
$170.00
Return Air Plenum, 16X24 Not For Filter And Round 16" Collar,Hvac. Return Air Filter Rack Plenum. Plenums & Filter Boxes.
eBay.com
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Return Air Plenum, 16X24 Not For Filter And Round 16" Collar,Hvac. Return Air Filter Rack Plenum. Plenums & Filter Boxes.
eBay.com
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Buildmart - 36" Plenum Box For [36" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling
Walmart
2
Free shipping
$169.99
Buildmart - 36" Plenum Box For [36" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling
Walmart
$162.07
Return Air Filter Rack Plenum, 16 X 25 X 1" Filter, Duct Work, Hvac, Sheet Metal. Return Air Filter Rack Plenum. Plenums & Filter Boxes.
eBay.com
Free shipping
$162.07
Return Air Filter Rack Plenum, 16 X 25 X 1" Filter, Duct Work, Hvac, Sheet Metal. Return Air Filter Rack Plenum. Plenums & Filter Boxes.
eBay.com
$391.99
BUILDMART - 60" 3 Slot Plenum Linear Slot Plenum - Triple Slot, Premium Insulated Plenum Box / Size: 12" H X 5" W X 60" L 2.0 H X 7.0 W In
Wayfair
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BUILDMART - 60" 3 Slot Plenum Linear Slot Plenum - Triple Slot, Premium Insulated Plenum Box / Size: 12" H X 5" W X 60" L 2.0 H X 7.0 W In
Wayfair
$186.36
Return Air Plenum For Filter 25X16x1" And Round 12" Collar Hvac Duct. Shop Made. Plenums & Filter Boxes.
eBay.com
Free shipping
$186.36
Return Air Plenum For Filter 25X16x1" And Round 12" Collar Hvac Duct. Shop Made. Plenums & Filter Boxes.
eBay.com
$60.99
20"X20" Return Air Plenum With 16" Start Collar Not Intended To Hold A Filter. Return Air Plenum. Silver. Plenums & Filter Boxes.
eBay.com
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$60.99
20"X20" Return Air Plenum With 16" Start Collar Not Intended To Hold A Filter. Return Air Plenum. Silver. Plenums & Filter Boxes.
eBay.com
$147.99
BUILDMART - 18" 2 Slot Plenum Linear Slot Plenum - Double Slot, Premium Insulated Plenum Box / Size: 12" H X 3.5" W X 18" L 12.0 H X 5.0 W In Grayaluminum
Wayfair
10
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BUILDMART - 18" 2 Slot Plenum Linear Slot Plenum - Double Slot, Premium Insulated Plenum Box / Size: 12" H X 3.5" W X 18" L 12.0 H X 5.0 W In Grayaluminum
Wayfair
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BUILDMART - 24" 3 Slot Plenum Linear Slot Plenum - Triple Slot, Premium Insulated Plenum Box / Size: 12" H X 5" W X 24" L 2.0 H X 7.0 W In Grayaluminum
Wayfair
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BUILDMART - 24" 3 Slot Plenum Linear Slot Plenum - Triple Slot, Premium Insulated Plenum Box / Size: 12" H X 5" W X 24" L 2.0 H X 7.0 W In Grayaluminum
Wayfair
$2.59
Garvin 52151-Svt 4" Sq Chicago Plenum Junction Box 1-1/2" Deep 1/2" And 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$2.59
Garvin 52151-Svt 4" Sq Chicago Plenum Junction Box 1-1/2" Deep 1/2" And 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$419.00
Supply And Return Plenum Kit 80G36h/Fb2128 W/ Box And Filter Rack 21"
eBay
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$419.00
Supply And Return Plenum Kit 80G36h/Fb2128 W/ Box And Filter Rack 21"
eBay

Shop ac plenum box

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$179.99
BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - (1 Slot) Single Slot] Premium Insulated Galvanized Sheet Metal Plenum Box For Heating And
Amazon.com
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$179.99
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$99.99
BUILDMART - 12" Plenum Box For [12" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
30% off
$69.99
$99.99
BUILDMART - 12" Plenum Box For [12" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$13.59
Garvin 52181-Svt 4" Sq Chicago Plenum Air Tight Junction Box 3" Deep (8) 1/2" & (4) 3/4" Side Ko's
New Feedonomics Feed - ARC 8/12/2025
$13.59
Garvin 52181-Svt 4" Sq Chicago Plenum Air Tight Junction Box 3" Deep (8) 1/2" & (4) 3/4" Side Ko's
New Feedonomics Feed - ARC 8/12/2025
$6.09
Garvin 52171-1-Vt 4" Sq Chicago Plenum Air Tight Junction Box Drawn 2-1/8" Deep (8) 1" Side Ko's
New Feedonomics Feed - ARC 8/12/2025
$6.09
Garvin 52171-1-Vt 4" Sq Chicago Plenum Air Tight Junction Box Drawn 2-1/8" Deep (8) 1" Side Ko's
New Feedonomics Feed - ARC 8/12/2025
$201.25
Raco 231Pl 4" Square Plenum Box 2-1/8 Deep 3/4" Ko
New Feedonomics Feed - ARC 8/12/2025
$201.25
Raco 231Pl 4" Square Plenum Box 2-1/8 Deep 3/4" Ko
New Feedonomics Feed - ARC 8/12/2025
$199.99
$259.99
BUILDMART - 48 Inch Plenum Box For [48 Inch Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas
Texas Buildmart
23% off
$199.99
$259.99
BUILDMART - 48 Inch Plenum Box For [48 Inch Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas
Texas Buildmart
$247.50
Raco 265Pl 4-11/16" Plenum Box 3/4-1 Ko
New Feedonomics Feed - ARC 8/12/2025
$247.50
Raco 265Pl 4-11/16" Plenum Box 3/4-1 Ko
New Feedonomics Feed - ARC 8/12/2025
$206.25
Raco 257Pl 4-11/16" Plenum Box 1/2" Ko
New Feedonomics Feed - ARC 8/12/2025
$206.25
Raco 257Pl 4-11/16" Plenum Box 1/2" Ko
New Feedonomics Feed - ARC 8/12/2025
$782.50
Raco 125Pl 4 Octagon Plenum Box 1-1/2" Deep 1/2" Ko
New Feedonomics Feed - ARC 8/12/2025
$782.50
Raco 125Pl 4 Octagon Plenum Box 1-1/2" Deep 1/2" Ko
New Feedonomics Feed - ARC 8/12/2025
$251.25
Raco 258Pl 4-11/16" Plenum Box 1 Ko
New Feedonomics Feed - ARC 8/12/2025
$251.25
Raco 258Pl 4-11/16" Plenum Box 1 Ko
New Feedonomics Feed - ARC 8/12/2025
$39.99
Copkim 8 Set 4 X 2 Inch Electrical Junction Box With Cover Square Plenum Box Galvanized Steel Metal Outlet Boxes, Ten 1/2'' Knockouts, 1-7/8" Deep,
Amazon.com
21
Free shipping
$39.99
Copkim 8 Set 4 X 2 Inch Electrical Junction Box With Cover Square Plenum Box Galvanized Steel Metal Outlet Boxes, Ten 1/2'' Knockouts, 1-7/8" Deep,
Amazon.com
21
$411.25
Raco 165Pl 4 Octagon Plenum Box 2-1/8 Deep 1/2-3/4" Ko
New Feedonomics Feed - ARC 8/12/2025
$411.25
Raco 165Pl 4 Octagon Plenum Box 2-1/8 Deep 1/2-3/4" Ko
New Feedonomics Feed - ARC 8/12/2025
$166.43
$209.99
Oxbox Heat Pump Supply Plenum
eFireplaceStore
20% off
$166.43
$209.99
Oxbox Heat Pump Supply Plenum
eFireplaceStore
$157.47
Return Air Plenum, 20 X 20" Not For Filter And Round 14" Collar. Hvac. Return Air Filter Rack Plenum. Plenums & Filter Boxes.
eBay.com
Free shipping
$157.47
Return Air Plenum, 20 X 20" Not For Filter And Round 14" Collar. Hvac. Return Air Filter Rack Plenum. Plenums & Filter Boxes.
eBay.com
Free shipping
$368.99
BUILDMART - 72" 1 Slot Plenum Linear Slot Plenum - Single Slot, Premium Insulated Plenum Box / Size: 12" H X 2" W X 72" L 12.0 H X 4.0 W In
Wayfair
Free shipping
$368.99
BUILDMART - 72" 1 Slot Plenum Linear Slot Plenum - Single Slot, Premium Insulated Plenum Box / Size: 12" H X 2" W X 72" L 12.0 H X 4.0 W In
Wayfair
Free shipping
$344.99
BUILDMART - 36" 3 Slot Plenum Linear Slot Plenum - Triple Slot, Premium Insulated Plenum Box / Size: 12" H X 5" W X 36" L 2.0 H X 7.0 W In Grayaluminum
Wayfair
Free shipping
$344.99
BUILDMART - 36" 3 Slot Plenum Linear Slot Plenum - Triple Slot, Premium Insulated Plenum Box / Size: 12" H X 5" W X 36" L 2.0 H X 7.0 W In Grayaluminum
Wayfair
Free shipping