An air duct support for supporting flexible air ducts and similar pipes without constricting airflow through the pipes. The support has an arcuate main body portion for receiving a portion of the conduit therein and an upright support attached to a bottom of the top portion and supporting the conduit at an elevated position in relation to a base surface, where said arcuate main body portion includes strengthening beads that run the length of said main body. The top portion rotates 360 degrees in relation to the support member to accommodate any direction of extension of the conduit.