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$209.99
BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - (2 Slot) Double Slot] Premium Insulated Galvanized Sheet Metal Plenum Box For Heating And
Amazon.com
11
Free shipping
$209.99
BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - (2 Slot) Double Slot] Premium Insulated Galvanized Sheet Metal Plenum Box For Heating And
Amazon.com
$229.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - (1 Slot) Single Slot] Premium Insulated Galvanized Sheet Metal Plenum Box For Heating And
Amazon.com
1
Free shipping
$229.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - (1 Slot) Single Slot] Premium Insulated Galvanized Sheet Metal Plenum Box For Heating And
Amazon.com
$139.99
$179.99
BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
22% off
$139.99
$179.99
BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$102.74
MCDANIEL METALS INC Return Air Filter Plenum Box RAFP-20X25
DkHardware.com
$102.74
MCDANIEL METALS INC Return Air Filter Plenum Box RAFP-20X25
DkHardware.com
$109.99
$149.99
BUILDMART - 18" Plenum Box For [18" Linear Slot Diffuser - 3 Slot - Triple Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
26% off
$109.99
$149.99
BUILDMART - 18" Plenum Box For [18" Linear Slot Diffuser - 3 Slot - Triple Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$169.99
$229.99
BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - 3 Slot - Triple Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
26% off
$169.99
$229.99
BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - 3 Slot - Triple Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$89.99
$119.99
BUILDMART - 18" Plenum Box For [18" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
25% off
$89.99
$119.99
BUILDMART - 18" Plenum Box For [18" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$79.99
$104.99
BUILDMART - 12" Plenum Box For [12" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
23% off
$79.99
$104.99
BUILDMART - 12" Plenum Box For [12" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$179.99
$229.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
21% off
$179.99
$229.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$552.00
Chief Plenum Rated Ceiling Enclosure Storage Box (White, 2X2')
B&H Photo-Video-Pro A
Free shipping
$552.00
Chief Plenum Rated Ceiling Enclosure Storage Box (White, 2X2')
B&H Photo-Video-Pro A
$109.99
$139.99
BUILDMART - 24" Plenum Box For [24" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
21% off
$109.99
$139.99
BUILDMART - 24" Plenum Box For [24" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$219.99
$289.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - 3 Slot - Triple Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
24% off
$219.99
$289.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - 3 Slot - Triple Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$188.95
$229.99
Oxbox Heat Pump Supply Plenum B Cabinet MPN:962-OHPSPB
eFireplaceStore
17% off
$188.95
$229.99
Oxbox Heat Pump Supply Plenum B Cabinet MPN:962-OHPSPB
eFireplaceStore
$199.99
$259.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
23% off
$199.99
$259.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$182.37
M & M MFG Combination Return Air Filter Box & Plenum MP-DFP2025R6
DkHardware.com
$182.37
M & M MFG Combination Return Air Filter Box & Plenum MP-DFP2025R6
DkHardware.com
$6.49
Garvin 52171-3/4-1Vt 4" Sq Chicago Plenum Junction Box 2-1/8" Deep (4) 1" And (4) 3/4" Side Ko's
Gordon Electric Supply
$6.49
Garvin 52171-3/4-1Vt 4" Sq Chicago Plenum Junction Box 2-1/8" Deep (4) 1" And (4) 3/4" Side Ko's
Gordon Electric Supply
$2.59
Garvin 52151-Svt 4" Sq Chicago Plenum Junction Box 1-1/2" Deep 1/2" And 3/4" Ko's
Gordon Electric Supply
$2.59
Garvin 52151-Svt 4" Sq Chicago Plenum Junction Box 1-1/2" Deep 1/2" And 3/4" Ko's
Gordon Electric Supply
$92.26
GRAY METAL SOUTH 38824242 Sheet Metal Insulated Plenum Box 24.25 Inches
Voomi Supply
$92.26
GRAY METAL SOUTH 38824242 Sheet Metal Insulated Plenum Box 24.25 Inches
Voomi Supply
$7.29
Garvin 52151-3/4-Vt 4" Sq Chicago Plenum Air Tight Junction Box 1-1/2" Deep 3/4" Ko's
Gordon Electric Supply
$7.29
Garvin 52151-3/4-Vt 4" Sq Chicago Plenum Air Tight Junction Box 1-1/2" Deep 3/4" Ko's
Gordon Electric Supply
$8.19
Garvin 52171-Svtred 4" Sq Chicago Plenum Air Tight Junction Box Red 2-1/8" Deep 1/2" & 3/4" Side Ko's
Gordon Electric Supply
$8.19
Garvin 52171-Svtred 4" Sq Chicago Plenum Air Tight Junction Box Red 2-1/8" Deep 1/2" & 3/4" Side Ko's
Gordon Electric Supply
$13.19
Garvin 52181-Svt 4" Sq Chicago Plenum Air Tight Junction Box 3" Deep (8) 1/2" & (4) 3/4" Side Ko's
Gordon Electric Supply
$13.19
Garvin 52181-Svt 4" Sq Chicago Plenum Air Tight Junction Box 3" Deep (8) 1/2" & (4) 3/4" Side Ko's
Gordon Electric Supply
$2,702.70
$3,329.99
Enervex Stainless Steel Plenum Box For RS And RSHT 14 To 16 Chimney Fans 227-0100-0016
eFireplaceStore
18% off
$2,702.70
$3,329.99
Enervex Stainless Steel Plenum Box For RS And RSHT 14 To 16 Chimney Fans 227-0100-0016
eFireplaceStore
$574.04
Chief 2' X 2' Plenum Rated Ceiling Storage Box (CMS492)
Staples
$574.04
Chief 2' X 2' Plenum Rated Ceiling Storage Box (CMS492)
Staples
$3.19
Garvin 52171-Svt 4" Sq Chicago Plenum Air Tight Junction Box 2-1/8" Deep 1/2" & 3/4" Side Ko's
Gordon Electric Supply
$3.19
Garvin 52171-Svt 4" Sq Chicago Plenum Air Tight Junction Box 2-1/8" Deep 1/2" & 3/4" Side Ko's
Gordon Electric Supply
$27.90
($2.79/Pc) 41089-1IP Leviton Surface-Mount Quickport Box, Plenum Rated, 1-Port, Ivory
Onlinecomponents.com
1
$27.90
($2.79/Pc) 41089-1IP Leviton Surface-Mount Quickport Box, Plenum Rated, 1-Port, Ivory
Onlinecomponents.com
$3.89
Garvin 72171-3/4-Vt 4-11/16" Chicago Plenum Air Tight Junction Box 2-1/8" Deep 3/4" Ko's
Gordon Electric Supply
$3.89
Garvin 72171-3/4-Vt 4-11/16" Chicago Plenum Air Tight Junction Box 2-1/8" Deep 3/4" Ko's
Gordon Electric Supply
$5.89
Garvin 52171-1-Vt 4" Sq Chicago Plenum Air Tight Junction Box Drawn 2-1/8" Deep (8) 1" Side Ko's
Gordon Electric Supply
$5.89
Garvin 52171-1-Vt 4" Sq Chicago Plenum Air Tight Junction Box Drawn 2-1/8" Deep (8) 1" Side Ko's
Gordon Electric Supply
$8.79
Garvin 72151-Svt 4-11/16" Chicago Plenum Air Tight Junction Box 1-1/2" Deep 1/2" & 3/4" Ko's
Gordon Electric Supply
$8.79
Garvin 72151-Svt 4-11/16" Chicago Plenum Air Tight Junction Box 1-1/2" Deep 1/2" & 3/4" Ko's
Gordon Electric Supply
$9.19
Garvin 72171-3/4-1-Vt 4-11/16" Chicago Plenum Air Tight Junction Box 2-1/8" Deep 3/4" & 1" Ko's
Gordon Electric Supply
$9.19
Garvin 72171-3/4-1-Vt 4-11/16" Chicago Plenum Air Tight Junction Box 2-1/8" Deep 3/4" & 1" Ko's
Gordon Electric Supply
$10.89
Garvin 72171-1-1/4Vt 4-11/16" Chicago Plenum Air Tight Junction Box 2-1/8" Deep 1-1/4" Ko's
Gordon Electric Supply
$10.89
Garvin 72171-1-1/4Vt 4-11/16" Chicago Plenum Air Tight Junction Box 2-1/8" Deep 1-1/4" Ko's
Gordon Electric Supply
$4.19
Garvin 72171-1-Vt 4-11/16" Chicago Plenum Air Tight Junction Box 2-1/8" Deep 1" Ko's
Gordon Electric Supply
$4.19
Garvin 72171-1-Vt 4-11/16" Chicago Plenum Air Tight Junction Box 2-1/8" Deep 1" Ko's
Gordon Electric Supply
$4.19
Garvin 72171-Svt 4-11/16" Chicago Plenum Air Tight Junction Box 2-1/8" Deep 1/2" Ko's
Gordon Electric Supply
$4.19
Garvin 72171-Svt 4-11/16" Chicago Plenum Air Tight Junction Box 2-1/8" Deep 1/2" Ko's
Gordon Electric Supply
$327.50
Raco 259Pl 4-11/16" Plenum Box 1-1/4" Ko
Gordon Electric Supply
$327.50
Raco 259Pl 4-11/16" Plenum Box 1-1/4" Ko
Gordon Electric Supply
$29.60
($2.96/Pc) 41089-2IP Leviton Surface-Mount Quickport Box, Plenum-Rated, 2-Port, Ivory
Onlinecomponents.com
5
$29.60
($2.96/Pc) 41089-2IP Leviton Surface-Mount Quickport Box, Plenum-Rated, 2-Port, Ivory
Onlinecomponents.com
$134.99
Alpine PLN144 Supply Plenum 24 X 22 X 30 Inches
Alpine Home Air Products
$134.99
Alpine PLN144 Supply Plenum 24 X 22 X 30 Inches
Alpine Home Air Products
$98.91
Mitchell Metal Products 953R6F191223122 R6 Insulated Plenum 19-1/2 X 23-1/2 X 24 in.
Voomi Supply
$98.91
Mitchell Metal Products 953R6F191223122 R6 Insulated Plenum 19-1/2 X 23-1/2 X 24 in.
Voomi Supply
Plenum Box Sizing | Complete HVAC Design Tutorial
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Plenum Box Sizing | Complete HVAC Design Tutorial
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4:28
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10.1K viewsAug 19, 2013
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5.6K viewsSep 15, 2023
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7:04
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16.6K viewsSep 15, 2023
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22K viewsDec 25, 2022
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667 viewsJul 22, 2024
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419 views6 months ago
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Shop plenum boxes

Sponsored
About our ads
$209.99
BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - (2 Slot) Double Slot] Premium Insulated Galvanized Sheet Metal Plenum Box For Heating And
Amazon.com
11
Free shipping
$209.99
BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - (2 Slot) Double Slot] Premium Insulated Galvanized Sheet Metal Plenum Box For Heating And
Amazon.com
$229.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - (1 Slot) Single Slot] Premium Insulated Galvanized Sheet Metal Plenum Box For Heating And
Amazon.com
1
Free shipping
$229.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - (1 Slot) Single Slot] Premium Insulated Galvanized Sheet Metal Plenum Box For Heating And
Amazon.com
$139.99
$179.99
BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
22% off
$139.99
$179.99
BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$102.74
MCDANIEL METALS INC Return Air Filter Plenum Box RAFP-20X25
DkHardware.com
$102.74
MCDANIEL METALS INC Return Air Filter Plenum Box RAFP-20X25
DkHardware.com
$109.99
$149.99
BUILDMART - 18" Plenum Box For [18" Linear Slot Diffuser - 3 Slot - Triple Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
26% off
$109.99
$149.99
BUILDMART - 18" Plenum Box For [18" Linear Slot Diffuser - 3 Slot - Triple Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$169.99
$229.99
BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - 3 Slot - Triple Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
26% off
$169.99
$229.99
BUILDMART - 36" Plenum Box For [36" Linear Slot Diffuser - 3 Slot - Triple Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$89.99
$119.99
BUILDMART - 18" Plenum Box For [18" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
25% off
$89.99
$119.99
BUILDMART - 18" Plenum Box For [18" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$79.99
$104.99
BUILDMART - 12" Plenum Box For [12" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
23% off
$79.99
$104.99
BUILDMART - 12" Plenum Box For [12" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$179.99
$229.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
21% off
$179.99
$229.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$552.00
Chief Plenum Rated Ceiling Enclosure Storage Box (White, 2X2')
B&H Photo-Video-Pro A
Free shipping
$552.00
Chief Plenum Rated Ceiling Enclosure Storage Box (White, 2X2')
B&H Photo-Video-Pro A
$109.99
$139.99
BUILDMART - 24" Plenum Box For [24" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
21% off
$109.99
$139.99
BUILDMART - 24" Plenum Box For [24" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$219.99
$289.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - 3 Slot - Triple Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
24% off
$219.99
$289.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - 3 Slot - Triple Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$188.95
$229.99
Oxbox Heat Pump Supply Plenum B Cabinet MPN:962-OHPSPB
eFireplaceStore
17% off
$188.95
$229.99
Oxbox Heat Pump Supply Plenum B Cabinet MPN:962-OHPSPB
eFireplaceStore
$199.99
$259.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
23% off
$199.99
$259.99
BUILDMART - 48" Plenum Box For [48" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$182.37
M & M MFG Combination Return Air Filter Box & Plenum MP-DFP2025R6
DkHardware.com
$182.37
M & M MFG Combination Return Air Filter Box & Plenum MP-DFP2025R6
DkHardware.com
$6.49
Garvin 52171-3/4-1Vt 4" Sq Chicago Plenum Junction Box 2-1/8" Deep (4) 1" And (4) 3/4" Side Ko's
Gordon Electric Supply
$6.49
Garvin 52171-3/4-1Vt 4" Sq Chicago Plenum Junction Box 2-1/8" Deep (4) 1" And (4) 3/4" Side Ko's
Gordon Electric Supply
$2.59
Garvin 52151-Svt 4" Sq Chicago Plenum Junction Box 1-1/2" Deep 1/2" And 3/4" Ko's
Gordon Electric Supply
$2.59
Garvin 52151-Svt 4" Sq Chicago Plenum Junction Box 1-1/2" Deep 1/2" And 3/4" Ko's
Gordon Electric Supply
$92.26
GRAY METAL SOUTH 38824242 Sheet Metal Insulated Plenum Box 24.25 Inches
Voomi Supply
$92.26
GRAY METAL SOUTH 38824242 Sheet Metal Insulated Plenum Box 24.25 Inches
Voomi Supply