Our HVAC adjustable 90 Degree elbows are are used to make turns in runs of round pipe and flexible duct from O (straight) to 90 degrees. They are also crimped on one end to easily fit into a pipe or duct fitting of the same diameter. They have a sturdy galvanized steel construction and are simple to adjust, and fabricated from premium G60 galvanized steel. They are the fitting to use when needing to make tight corners and are utilized for maintaining the best airflow for maximum efficiency in your HVAC system. These elbows are made of 26 gauge galvanized sheet metal up to 12" or 24 gauge galvanized sheet metal from 14" to 24". Ideal aplication with either flexible duct or sheet metal duct.
Duct Installation Tips & Tricks — It is recommended that you seal the seams with a duct sealant after installation to prevent any air leakage. You can easily increase the efficiency of your system and reduce your gas and electric bills. See installation tip for Flexible Duct or Sheet Metal Duct, depending on which method you will be utiliazing.
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The elbow is made out of strong sheet metal. The only problem I had was to slide the sections into the angle I needed. I am glad the angle I needed was less than 45 degrees. I put it over the fan housing and was able to direct the air exactly where I needed.