Duct Reducers & Increasers

16 result(s) for "Duct Reducers & Increasers" Clear All Refinements All Typically In Stock
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Everbilt 3 in. to 4 in. Plastic Duct to Duct Increaser
Item # 3571128

The Duct to Duct Increaser connects 3 in. to 4 in. ducts together. It is ideal for bathroom fan exhaust applications. Finished in black color. The increaser is designed to be a tight fit to reduce air leaks in the connections. When using the increaser with a 3 in or 4 in snap pipe (aluminum or galvanized) , it may be necessary to unsnap the receiving end of the pipe, then insert the increaser and snap the pipe back together.

  • Made of polypropylene
  • Used when your exhaust port or exhaust hood needs to be increased from 3 in. to accommodate a 4 in. duct
  • Consult your local building codes for approved installation practices
  • Light weight design

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Master Flow 6 in. to 4 in. Round Reducer
Master Flow 6 in. to 4 in. Round Reducer
Item # 3570313

The Master Flow 6 in. x 4 in. Round Reducer is made of galvanized steel. It features hemmed collar edges for enhanced strength and a secure fit. The reducer is used to transition from a 6 in. pipe to a 4 in. pipe in an HVAC system. It is suitable for most HVAC applications.

  • Hemmed collar edges for an improved fit and increased strength
  • Connects 6 in. pipe to 4 in. pipe in duct run
  • Seal seams with code-approved mastic, sealant or duct tape (sold separately)
  • Always insulate ductwork for greater system efficiency and comfort (insulation not included)

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Master Flow 5 in. to 4 in. Round Reducer
Master Flow 5 in. to 4 in. Round Reducer
Item # 3570312

The Master Flow 5 in. x 4 in. Round Reducer is made of galvanized steel. It features hemmed collar edges for enhanced strength and a secure fit. The reducer is used to transition from a 5 in. pipe to a 4 in. pipe in an HVAC system. It is suitable for most HVAC applications.

  • Hemmed collar edges for an improved fit and increased strength
  • Connects 5 in. pipe to 4 in. pipe in duct run
  • Seal seams with code-approved mastic, sealant or duct tape (sold separately)
  • Always insulate ductwork for greater system efficiency and comfort (insulation not included)
  • Maximum temperature rating of 390F, minimum temperature rating of -100F

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Master Flow 4 in. to 3 in. 26-Gauge Round Reducer
Master Flow 4 in. to 3 in. 26-Gauge Round Reducer
Item # 3570321

The Master Flow 4 in. x 3 in. Round Reducer is made of 26-Gauge, galvanized steel. It is used to transition from a 4 in. pipe to a 3 in. pipe in an HVAC system. It features hemmed collar edges for strength and a snug fit. This round reducer is suitable for most HVAC applications.

  • Used to transition from a 4 in. pipe to a 3 in. pipe in an HVAC system
  • Always seal seams with building code-approved sealant or duct tape (not included)
  • Always insulate ductwork for greater system efficiency and comfort (insulation not included)
  • Hemmed collar edges for a snug fit and increased strength

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Master Flow 6 in. to 5 in. Round Reducer
Master Flow 6 in. to 5 in. Round Reducer
Item # 3570314

The Master Flow 6 in. x 5 in. Round Reducer is made of galvanized steel. It features hemmed collar edges for enhanced strength and a secure fit. The reducer is used to transition from a 6 in. pipe to a 5 in. pipe in an HVAC system. It is suitable for most HVAC applications.

  • Hemmed collar edges for an improved fit and increased strength
  • Connects 6 in. pipe to 5 in. pipe in duct run
  • Seal seams with code-approved mastic, sealant or duct tape (sold separately)
  • Always insulate ductwork for greater system efficiency and comfort (insulation not included)

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Master Flow 10 in. to 8 in. Round Reducer
Master Flow 10 in. to 8 in. Round Reducer
Item # 3570319

The Master Flow 10 in. x 8 in. Round Reducer is made of galvanized steel. It features hemmed collar edges for enhanced strength and a secure fit. The reducer is used to transition from a 10 in. pipe to a 8 in. pipe in an HVAC system. It is suitable for most HVAC applications.

  • Hemmed collar edges for an improved fit and increased strength
  • Connects 10 in. pipe to 8 in. pipe in duct run
  • Seal seams with code-approved mastic, sealant or duct tape (sold separately)
  • Always insulate ductwork for greater system efficiency and comfort (insulation not included)
  • Hemmed collar edges to provide strength and a snug fit

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Master Flow 4 in. to 3 in. Round Reducer
Master Flow 4 in. to 3 in. Round Reducer
Item # 3570311

The Master Flow 4 in. x 3 in. Round Reducer is made of galvanized steel. It features hemmed collar edges for enhanced strength and a secure fit. The reducer is used to transition from a 4 in. pipe to a 3 in. pipe in an HVAC system. It is suitable for most HVAC applications.

  • Hemmed collar edges for an improved fit and increased strength
  • Connects 4 in. pipe to 3 in. pipe in duct run
  • Seal seams with code-approved mastic, sealant or duct tape (sold separately)
  • Always insulate ductwork for greater system efficiency and comfort (insulation not included)

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Master Flow 12 in. to 10 in. Round Reducer
Master Flow 12 in. to 10 in. Round Reducer
Item # 3570320

The Master Flow 12 in. x 10 in. Round Reducer is made of galvanized steel. It features hemmed collar edges for enhanced strength and a secure fit. The reducer is used to transition from a 12 in. pipe to a 10 in. pipe in an HVAC system. It is suitable for most HVAC applications.

  • Hemmed collar edges for an improved fit and increased strength
  • Connects 12 in. pipe to 10 in. pipe in duct run
  • Seal seams with code-approved mastic, sealant or duct tape (sold separately)
  • Always insulate ductwork for greater system efficiency and comfort (insulation not included)

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Master Flow 7 in. to 6 in. 26-Gauge Flat Reducer
Master Flow 7 in. to 6 in. 26-Gauge Flat Reducer
Item # 311161303

The Master Flow 26 Gauge 7 in. x 6 in. Flat Reducer is made OG galvanized steel. Its short length makes it ideal for tight spaces. The reducer is used to transition from a 7 in. pipe to a 6 in. pipe system. It is suitable for most HVAC applications.

  • 26-Gauge, galvanized steel construction for durability
  • Connects 7 in. pipe to 6 in. pipe in duct run
  • Connect using sheet metal screws (not included)
  • Universal - not crimped
  • Can be crimped as needed

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Master Flow 7 in. to 6 in. Round Reducer
Master Flow 7 in. to 6 in. Round Reducer
Item # 3570316

The Master Flow 7 in. x 6 in. Round Reducer is made of galvanized steel. It features hemmed collar edges for enhanced strength and a secure fit. The reducer is used to transition from a 7 in. pipe to a 6 in. pipe in an HVAC system. It is suitable for most HVAC applications.

  • Hemmed collar edges for an improved fit and increased strength
  • Connects 7 in. pipe to 6 in. pipe in duct run
  • Seal seams with code-approved mastic, sealant or duct tape (sold separately)
  • Always insulate ductwork for greater system efficiency and comfort (insulation not included)
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Master Flow 8 in. to 6 in. Round Reducer
Master Flow 8 in. to 6 in. Round Reducer
Item # 3570317

The Master Flow 8 in. x 6 in. Round Reducer is made of galvanized steel. It features hemmed collar edges for enhanced strength and a secure fit. The reducer is used to transition from a 8 in. pipe to a 6 in. pipe in an HVAC system. It is suitable for most HVAC applications.

  • Hemmed collar edges for an improved fit and increased strength
  • Connects 8 in. pipe to 6 in. pipe in duct run
  • Seal seams with code-approved mastic, sealant or duct tape (sold separately)
  • Always insulate ductwork for greater system efficiency and comfort (insulation not included)

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Rectorseal Rectorseal Slimduct 3.75"-2.75" Reducer, White 100-77
Rectorseal Rectorseal Slimduct 3.75"-2.75" Reducer, White 100-77
Item # 332003455

Rectorseal Slimduct 3.75"-2.75" Reducer, White 100-77. Reducers Offer An Aesthetically Pleasing Transition From A 3.75" (100mm) Duct To A 2.75" (77mm) Duct. Weather resistant PVC, UV stabilized & fire resistant. Tested to over 2,000 hours. Temperature range -4°F to 140° F. Complements any residential or commercial building. Available in SD77 (2 3/4"), SD100 (3 3/4"), SD140 (51/2") and 4 color options (white, ivory, black and brown). 78" duct lengths and 15 fittings ensure complete flexibility of installation. Mfg #85106

  • Reducers Offer An Aesthetically Pleasing Transition From A 3.75" (100mm) Duct To A 2.75" (77mm) Duct.
  • Weather resistant PVC, UV stabilized & fire resistant. Tested to over 2,000 hours. Temperature range -4°F to 140° F
  • Complements any residential or commercial building. Available in SD77 (2 3/4"), SD100 (3 3/4"), SD140 (51/2") and 4 color options (white, ivory, black and brown)
  • 78" duct lengths and 15 fittings ensure complete flexibility of installation
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Master Flow 5 in. to 4 in. 26-Gauge Flat Reducer
Master Flow 5 in. to 4 in. 26-Gauge Flat Reducer
Item # 311161301

The Master Flow 26 Gauge 5 in. x 4 in. Flat Reducer is made OG galvanized steel. Its short length makes it ideal for tight spaces. The reducer is used to transition from a 5 in. pipe to a 4 in. pipe system. It is suitable for most HVAC applications.

  • 26-Gauge, galvanized steel construction for durability
  • Connects 5 in. pipe to 4 in. pipe in duct run
  • Connect using sheet metal screws (not included)
  • Universal - not crimped
  • Can be crimped as needed
CLEARANCE
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Rectorseal Rectorseal Slimduct 3.75" Flex Adaptor, White 100
Rectorseal Rectorseal Slimduct 3.75" Flex Adaptor, White 100
Item # 331506354

Flex Adapters connect the Flexible Elbow to the 3.75" (100mm) Duct. . Weather Resistant Pvc, Uv Stabilized & Fire Resistant. Tested To Over 2,000 Hours. Temperature Range -4°f To 140° F. Complements any residential or commercial building. Available in SD77 (2 3/4"), SD100 (3 3/4"), SD140 (51/2") and 4 color options (white, ivory, black and brown) . 78" duct lengths and 15 fittings ensure complete flexibility of installation. Mfg #85109

  • Flex Adapters connect the Flexible Elbow to the 3.75" (100mm) Duct.
  • Weather resistant PVC, UV stabilized & fire resistant. Tested to over 2,000 hours. Temperature range -4°F to 140° F
  • Complements any residential or commercial building. Available in SD77 (2 3/4"), SD100 (3 3/4"), SD140 (51/2") and 4 color options (white, ivory, black and brown)
  • 78" duct lengths and 15 fittings ensure complete flexibility of installation
Units: Each
Qty:

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Master Flow 7 in. to 4 in. Round Reducer
Master Flow 7 in. to 4 in. Round Reducer
Item # 3570315

The Master Flow 7 in. x 4 in. Round Reducer is made of galvanized steel. It features hemmed collar edges for enhanced strength and a secure fit. The reducer is used to transition from a 7 in. pipe to a 4 in. pipe in an HVAC system. It is suitable for most HVAC applications.

  • Hemmed collar edges for an improved fit and increased strength
  • Connects 7 in. pipe to 4 in. pipe in duct run
  • Seal seams with code-approved mastic, sealant or duct tape (sold separately)
  • Always insulate ductwork for greater system efficiency and comfort (insulation not included)
CLEARANCE
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Master Flow 8 in. to 7 in. Round Reducer
Master Flow 8 in. to 7 in. Round Reducer
Item # 3570318

The Master Flow 8 in. x 7 in. Round Reducer is made of galvanized steel. It features hemmed collar edges for enhanced strength and a secure fit. The reducer is used to transition from a 8 in. pipe to a 7 in. pipe in an HVAC system. It is suitable for most HVAC applications.

  • Hemmed collar edges for an improved fit and increased strength
  • Connects 8 in. pipe to 7 in. pipe in duct run
  • Seal seams with code-approved mastic, sealant or duct tape (sold separately)
  • Always insulate ductwork for greater system efficiency and comfort (insulation not included)
CLEARANCE
Units: Each
Qty:

Add to Favorites List Add to Customized Product Offering Remove From Customized Product Offering Add To Bin Labels Added to Bin Labels. Click icon to print Bin Labels. Add To Custom Catalog Added To Custom Catalog. Click icon to print Custom Catalog. Email