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$23.81
24 in. X 14 in. Return Air Box
Home Depot
Free shipping
$23.81
24 in. X 14 in. Return Air Box
Home Depot
Free shipping
$18.98
10 in. X 4 in. To 6 in. Register Box With Flange
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$18.98
10 in. X 4 in. To 6 in. Register Box With Flange
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$52.35
14 in. X 8 in. X 9 in. 90 Degree Register Box With Flange
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14 in. X 8 in. X 9 in. 90 Degree Register Box With Flange
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14 in. X 8 in. To 9 in. Insulated Register Box With Flange R-6
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14 in. X 8 in. To 9 in. Insulated Register Box With Flange R-6
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12 in. X 6 in. To 6 in. Insulated Register Box
Home Depot
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12 in. X 6 in. To 6 in. Insulated Register Box
Home Depot
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$54.51
Duct Outlet 8" X 8" Ceiling Box, W/ 6" Round Collar Connects Register Vent And Diffuser Hvac
Everymarket INC
$54.51
Duct Outlet 8" X 8" Ceiling Box, W/ 6" Round Collar Connects Register Vent And Diffuser Hvac
Everymarket INC
$45.21
M & M MFG Register Box R6 Without Ducting Holes 9 in. Tall 649R6106
DkHardware.com
$45.21
M & M MFG Register Box R6 Without Ducting Holes 9 in. Tall 649R6106
DkHardware.com
$48.56
Duct Outlet 6" X 6" Ceiling Box, W/ 6" Round Collar Connects Register Vent And Diffuser Hvac
Everymarket INC
$48.56
Duct Outlet 6" X 6" Ceiling Box, W/ 6" Round Collar Connects Register Vent And Diffuser Hvac
Everymarket INC
$29.99
GAF Master Flow DIRB12X12 12" X 12" Ductboard R6-Insulated Register Box, DIRB12X12 | Supplyhouse.Com
SupplyHouse.com
$29.99
GAF Master Flow DIRB12X12 12" X 12" Ductboard R6-Insulated Register Box, DIRB12X12 | Supplyhouse.Com
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$10.36
GAF Master Flow RB8X8X6 8" X 8" To 6" Universal Register Box | Supplyhouse.Com
SupplyHouse.com
$10.36
GAF Master Flow RB8X8X6 8" X 8" To 6" Universal Register Box | Supplyhouse.Com
SupplyHouse.com
$11.45
8 in. X 4 in. To 5 in. Universal Register Box
Home Depot
Free shipping
$11.45
8 in. X 4 in. To 5 in. Universal Register Box
Home Depot
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$26.26
GAF Master Flow DIRB10X8 10" X 8" Master Flow Ductboard R6-Insulated Register Box | Supplyhouse.Com
SupplyHouse.com
$26.26
GAF Master Flow DIRB10X8 10" X 8" Master Flow Ductboard R6-Insulated Register Box | Supplyhouse.Com
SupplyHouse.com
$25.20
GAF Master Flow DIRB10X6 10" X 6" Master Flow Ductboard R6-Insulated Register Box | Supplyhouse.Com
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$25.20
GAF Master Flow DIRB10X6 10" X 6" Master Flow Ductboard R6-Insulated Register Box | Supplyhouse.Com
SupplyHouse.com
$16.98
12 in. X 4 in. To 6 in. 90-Degree Register Box
Home Depot
Free shipping
$16.98
12 in. X 4 in. To 6 in. 90-Degree Register Box
Home Depot
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$17.98
8 in. X 8 in. To 6 in. Ceiling Register Box
Home Depot
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$17.98
8 in. X 8 in. To 6 in. Ceiling Register Box
Home Depot
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$26.08
10 in. X 10 in. Duct Board Insulated Register Box - R6
Home Depot
Free shipping
$26.08
10 in. X 10 in. Duct Board Insulated Register Box - R6
Home Depot
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$21.99
GAF Master Flow IRB10X6X6 10" X 6" To 6" Insulated Register Box, IRB10X6X6 | Supplyhouse.Com
SupplyHouse.com
$21.99
GAF Master Flow IRB10X6X6 10" X 6" To 6" Insulated Register Box, IRB10X6X6 | Supplyhouse.Com
SupplyHouse.com
$119.99
$159.99
BUILDMART - 24" Plenum Box For [24" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
25% off
$119.99
$159.99
BUILDMART - 24" Plenum Box For [24" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$11.98
10 in. X 4 in. To 5 in. Universal Register Box
Home Depot
Free shipping
$11.98
10 in. X 4 in. To 5 in. Universal Register Box
Home Depot
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$64.22
12 in. X 12 in. To 12 in. Pre-Sealed And Pre-Insulated R-6 Register Box
Home Depot
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$64.22
12 in. X 12 in. To 12 in. Pre-Sealed And Pre-Insulated R-6 Register Box
Home Depot
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$229.99
$299.99
BUILDMART - 60" Plenum Box For [60" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
23% off
$229.99
$299.99
BUILDMART - 60" Plenum Box For [60" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
$79.99
$109.99
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
27% off
$79.99
$109.99
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
$15.63
12 in. X 2-1/4 in. To 6 in. End Register Box
Home Depot
Free shipping
$15.63
12 in. X 2-1/4 in. To 6 in. End Register Box
Home Depot
Free shipping
$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
$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
$17.00
GAF Master Flow RB10X10X8 10" X 10" To 8" Universal Register Box | Supplyhouse.Com
SupplyHouse.com
$17.00
GAF Master Flow RB10X10X8 10" X 10" To 8" Universal Register Box | Supplyhouse.Com
SupplyHouse.com
$30.67
Airtec 81970 MHL Multi-Stage Large Tuffbox Register Box (10" X 10") | Supplyhouse.Com
SupplyHouse.com
$30.67
Airtec 81970 MHL Multi-Stage Large Tuffbox Register Box (10" X 10") | Supplyhouse.Com
SupplyHouse.com
$87.47
Z-FLEX 2SVDRTX04 4" Z-Vent Double Wall Termination Box | Supplyhouse.Com
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$87.47
Z-FLEX 2SVDRTX04 4" Z-Vent Double Wall Termination Box | Supplyhouse.Com
SupplyHouse.com
$12.60
GAF Master Flow 90RB10X4X6 10" X 4" X 6" Master Flow 90-Degree Register Box | Supplyhouse.Com
SupplyHouse.com
$12.60
GAF Master Flow 90RB10X4X6 10" X 4" X 6" Master Flow 90-Degree Register Box | Supplyhouse.Com
SupplyHouse.com
$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
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Shop hvac duct box

Sponsored
About our ads
$23.81
24 in. X 14 in. Return Air Box
Home Depot
Free shipping
$23.81
24 in. X 14 in. Return Air Box
Home Depot
Free shipping
$18.98
10 in. X 4 in. To 6 in. Register Box With Flange
Home Depot
Free shipping
$18.98
10 in. X 4 in. To 6 in. Register Box With Flange
Home Depot
Free shipping
$52.35
14 in. X 8 in. X 9 in. 90 Degree Register Box With Flange
Home Depot
Free shipping
$52.35
14 in. X 8 in. X 9 in. 90 Degree Register Box With Flange
Home Depot
Free shipping
$58.01
14 in. X 8 in. To 9 in. Insulated Register Box With Flange R-6
Home Depot
Free shipping
$58.01
14 in. X 8 in. To 9 in. Insulated Register Box With Flange R-6
Home Depot
Free shipping
$22.53
12 in. X 6 in. To 6 in. Insulated Register Box
Home Depot
Free shipping
$22.53
12 in. X 6 in. To 6 in. Insulated Register Box
Home Depot
Free shipping
$54.51
Duct Outlet 8" X 8" Ceiling Box, W/ 6" Round Collar Connects Register Vent And Diffuser Hvac
Everymarket INC
$54.51
Duct Outlet 8" X 8" Ceiling Box, W/ 6" Round Collar Connects Register Vent And Diffuser Hvac
Everymarket INC
$45.21
M & M MFG Register Box R6 Without Ducting Holes 9 in. Tall 649R6106
DkHardware.com
$45.21
M & M MFG Register Box R6 Without Ducting Holes 9 in. Tall 649R6106
DkHardware.com
$48.56
Duct Outlet 6" X 6" Ceiling Box, W/ 6" Round Collar Connects Register Vent And Diffuser Hvac
Everymarket INC
$48.56
Duct Outlet 6" X 6" Ceiling Box, W/ 6" Round Collar Connects Register Vent And Diffuser Hvac
Everymarket INC
$29.99
GAF Master Flow DIRB12X12 12" X 12" Ductboard R6-Insulated Register Box, DIRB12X12 | Supplyhouse.Com
SupplyHouse.com
$29.99
GAF Master Flow DIRB12X12 12" X 12" Ductboard R6-Insulated Register Box, DIRB12X12 | Supplyhouse.Com
SupplyHouse.com
$10.36
GAF Master Flow RB8X8X6 8" X 8" To 6" Universal Register Box | Supplyhouse.Com
SupplyHouse.com
$10.36
GAF Master Flow RB8X8X6 8" X 8" To 6" Universal Register Box | Supplyhouse.Com
SupplyHouse.com
$11.45
8 in. X 4 in. To 5 in. Universal Register Box
Home Depot
Free shipping
$11.45
8 in. X 4 in. To 5 in. Universal Register Box
Home Depot
Free shipping
$26.26
GAF Master Flow DIRB10X8 10" X 8" Master Flow Ductboard R6-Insulated Register Box | Supplyhouse.Com
SupplyHouse.com
$26.26
GAF Master Flow DIRB10X8 10" X 8" Master Flow Ductboard R6-Insulated Register Box | Supplyhouse.Com
SupplyHouse.com
$25.20
GAF Master Flow DIRB10X6 10" X 6" Master Flow Ductboard R6-Insulated Register Box | Supplyhouse.Com
SupplyHouse.com
$25.20
GAF Master Flow DIRB10X6 10" X 6" Master Flow Ductboard R6-Insulated Register Box | Supplyhouse.Com
SupplyHouse.com
$16.98
12 in. X 4 in. To 6 in. 90-Degree Register Box
Home Depot
Free shipping
$16.98
12 in. X 4 in. To 6 in. 90-Degree Register Box
Home Depot
Free shipping
$17.98
8 in. X 8 in. To 6 in. Ceiling Register Box
Home Depot
Free shipping
$17.98
8 in. X 8 in. To 6 in. Ceiling Register Box
Home Depot
Free shipping
$26.08
10 in. X 10 in. Duct Board Insulated Register Box - R6
Home Depot
Free shipping
$26.08
10 in. X 10 in. Duct Board Insulated Register Box - R6
Home Depot
Free shipping
$21.99
GAF Master Flow IRB10X6X6 10" X 6" To 6" Insulated Register Box, IRB10X6X6 | Supplyhouse.Com
SupplyHouse.com
$21.99
GAF Master Flow IRB10X6X6 10" X 6" To 6" Insulated Register Box, IRB10X6X6 | Supplyhouse.Com
SupplyHouse.com
$119.99
$159.99
BUILDMART - 24" Plenum Box For [24" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers
25% off
$119.99
$159.99
BUILDMART - 24" Plenum Box For [24" Linear Slot Diffuser - 2 Slot - Double Slot] Premium Insulated Plenum Box For Heating And Cooling - Texas Buildmart
Linear Slot Diffusers