Model # RD3.25X10X36

Internet #100139237

Store SKU #149322

Store SO SKU #1000683904

null 3.25 in. x 10 in. x 3 ft. Half Section Rectangular Stack Duct
0050206921906

3.25 in. x 10 in. x 3 ft. Half Section Rectangular Stack Duct

$6.21 /each

Frequently Bought Together

Product Overview

Master Flow's Rectangular Stack Duct is used for HVAC system applications between wall studs as supply and return ducts, and to vent range hoods, kitchen and bath fans between walls as well . Installing rectangular duct between wall studs saves space, and is an easy way to route air up or down a wall and to other stories of a home. It also works in overhead spaces between floor joists or in attics. Sold in "L" sections. Two pieces must be ordered to produce a full section of duct.

  • Sold in Half Sections - 2 pieces needed for complete section of duct
  • Sections easily snap together with no tools necessary
  • Can be cut to needed length with simple tin snips (not included)
  • Notched corners for easily connecting sections, or use cleats (cleats not included)
  • Always seal seams with code-approved mastic, sealant or duct tape (not included)
  • Install with sheet metal screws (not included)
  • Always insulate ductwork for greater system efficiency and comfort

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Customer Questions & Answers

how do i attach a 3x10 elbow to a 3x10 stack

do i need to modify the elbow ?
Asked by: JR
use a crimping tool to reduce the size then insert the stack and use self tapping screw #6 are fine and finally use aluminum tape
Answered by: LL
Date published: 2016-01-20

does this come 3.25x8x3?

does this come 3.25x8x3?
Asked by: Grammy
Hi Grammy, unfortunately we do not offer the Rectangular Stack Duct in 3.25x8x3 on Homedepot.com. We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot!
Answered by: THDSupport
Date published: 2017-03-01

Can I cut this in half and assemble the 2/2 together into an 18 inch long stack? Ty

Can I cut this in half and assemble the 2/2 together into an 18 inch long stack? Ty
Asked by: Tank
  • y_2017, m_4, d_23, h_23CST
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Customer Reviews

3.25 in. x 10 in. x 3 ft. Half Section Rectangular Stack Duct is rated 4.1 out of 5 by 11.
Rated 5 out of 5 by from Toe kick duct extention I needed to extend from the wall to the front of the cabinet toe kick and this worked great. Thought i might need two pieces but was able to cut one in half and had plenty of length with the starter piece i purchased.
Date published: 2017-02-28
Rated 5 out of 5 by from Microwave vent duct to the Attic This was perfect length for mounted overhead microwave vent duct to the Attic with 8 foot ceilings.
Date published: 2017-03-21
Rated 4 out of 5 by from Good quality and easy to assemble and cut for a... Good quality and easy to assemble and cut for a vent for a microwave over the stove.
Date published: 2017-03-08
Rated 1 out of 5 by from Will be returning, needed to extend standard floor register. 4... Will be returning, needed to extend standard floor register. 4 x 10
Date published: 2017-04-18
Rated 3 out of 5 by from 3 Star Review Rating provided by a verified purchaser
Date published: 2017-04-22
Rated 5 out of 5 by from built to satisfy! Great product for the price, quality and very durable.
Date published: 2016-07-19
Rated 5 out of 5 by from did its job material were easy to assemble and install was good
Date published: 2016-01-19
Rated 4 out of 5 by from Perfect for job at hand Used as an extension for an existing duct. No instructions provided. Easy to cut to length.
Date published: 2014-07-22
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