Internet #100033952

Model #B90E4

Store SKU #148717

Store SO SKU #1000683389

4 in. 90 Deg. Round Adjustable Elbow

  • Provides a gradual turn for your pipes
  • Galvanized steel construction for incredible durability
  • Easy to install with seal seams
  • See More Details
$458

Frequently Bought Together

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Price:
$458

Product Overview

Master Flow's adjustable elbows are used to make turns in runs of round pipe and flexible duct through 90°. They have a sturdy galvanized steel construction and are simple to adjust. They are also crimped on one end to easily fit into a pipe or other fitting of the same diameter.
  • Used to make angular or gradual turns in runs of pipe
  • Adjustable to any angle through 90°
  • 30-Gauge, galvanized steel construction
  • Crimped end for easy installation
  • Always seal seams with building code approved sealant or duct tape
  • Always insulate ductwork for greater system efficiency and comfort

Info & Guides

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Price
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Ratings
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MaterialGalvanized SteelAluminumGalvanized SteelGalvanized Steel
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Specifications

Dimensions

Product Depth (in.)
4
Product Diameter (in.)
4
Product Height (in.)
7.5
Product Width (in.)
4

Details

Bend Degree
Adjustable
Brand/Model Compatibility
Universal
Gauge
30
HVAC application
All HVAC types
Material
Galvanized Steel
Product Weight (lb.)
0.5
Returnable
180-Day

Warranty / Certifications

Manufacturer Warranty
Free from Manufacturer Defect at Time of Delivery

Questions & Answers

8Questions28Answers

Can these be adjusted to 45 degrees

Asked by Mike August 3, 2020
4
Answers

The one I purchased does not flex to 45 degrees. You can probably get a few degrees less than 90, but that is it.

will this fit inside a 4" vent pipe to the outside

Asked by Bill February 22, 2020
4
Answers

The Crimped or "male" end fits inside a traditional 4" vent pipe. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.

When I purchased all necessary parts / hardware, typicalliy how many days would it tske for a experience tech installer to complete THE WHOLE JOB?

Asked by CR2019 December 4, 2019
2
Answers

Your online delivery business is a JOKE !

Can you connect this directly to the dryer vent?

Asked by EV7 November 26, 2018
9
Answers

Yes, but despite what two others said, DON'T use sheet metal screws. Lint will catch on them and cause a dangerous clog.

can this be used with category III stainless steel vent pipes/appliances ?

Asked by Pankaj May 27, 2018
1
Answer

This is a 30 gauge elbow, it will depend on the situation. Typically you want to use the same "category" of pipe during installation. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612.

what's difference between this item and the other one https://www.homedepot.com/p/Master-Flow-4-i...

Asked by Pankaj May 27, 2018
5
Answers

The elbow on this page is 30 gauge galvanized steel (thinner sheet metal), the one you linked to is 26 gauge (thicker) galvanized steel.

What is the radius of the bend?

Asked by Oregonian October 1, 2017
1
Answer

It's adjustable but I taped it to permanent 90 degrees

Joining 4 inch everbilt flex duct to 4 inch sheet metal duct?

Asked by Harley October 26, 2015
2
Answers

It should work but for a dryer I always recommend using all metal.

Customer Reviews

  • 66 Customer Reviews
  • 4.1 out of 5 stars overall
67% of customers recommended.
Overall Ratings
5star-icon(41)
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3star-icon(4)
2star-icon(2)
1star-icon(9)
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Poor quality
Quality :
1
Value :
1
This seemed liked a great idea, but it fell apart before I could install it. Be very careful when handling, the pieces come apart easily and will not go back together. I will be returning this to for a refund.
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I don't know why I didn't put this on my first dryer 20 years ago. This makes connecting/disconne...
I don't know why I didn't put this on my first dryer 20 years ago. This makes connecting/disconnecting for cleaning so much easier, also prevents flex pipe from getting smashed if the machine is accidentally pushed too far against the wall. I used 3M silver flex pipe tape to fix the 45 degree bend and clamped it on to the dryer output, works great, clothes seem to dry 10-20 minutes faster now.
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2
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I used two of these when I rerouted the dryer vent. One of them I set the angle them compressed i...
I used two of these when I rerouted the dryer vent. One of them I set the angle them compressed it so it would fit in the wall. Worked out great. These are much more durable than the aluminum ones.
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This product worked great and is in use as we speak. I just needed a small bend and I was able to...
This product worked great and is in use as we speak. I just needed a small bend and I was able to adjust this to my needs very easily.
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2
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Makes everything nice and tidy, great idea, and easy to install!
Makes everything nice and tidy, great idea, and easy to install!
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1
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Rating provided by a verified purchaser...
Rating provided by a verified purchaser
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This adjustable elbow fit my needs perfectly....
This adjustable elbow fit my needs perfectly.
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works to expectations...
works to expectations
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Rating provided by a verified purchaser...
Rating provided by a verified purchaser
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Quality is sorely lacking. It fell apart as it was...
Quality is sorely lacking. It fell apart as it was being angled into position not in one of the joints but two of them. I would definitely not recommend this product.
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