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  1. 3-1/4 in. x 10 in. Rectangular Stack Duct Starting Collar

    This Master Flow 3-1/4 in. x 10 in. Rectangular Stack Duct Starting Collar is made of durable, galvanized steel. It is used to transition from plenums (duct board or lined) or a flat surface to 3.25 in. x 10 in. …

  2. IMPERIAL 30 Gauge Galvanized Steel Rectangular Stack Duct ...

    The collar is easy to install with sheet metal screws for a secure fit (screws sold separately). It is made from 30-gauge galvanized steel for rust resistance and lasting durability, and is suitable for use in …

  3. GAF | Master Flow® Stack Duct Starting Collar

    This Master Flow™ 3-1/4 in. x 10 in. Rectangular Stack Duct Starting Collar is made of durable, galvanized steel. It is used to transition from plenums (duct board or lined) or a flat surface to 3.25 in. …

  4. Rectangular Collars – Royal Metal Products

    Metal Pipe, Elbows, Ductwork, Register Boots, Insulated Boxes, Collars, Flexible Duct + More Download Our Catalog Elbows Angles Furnace Pipe Oval Pipe / Elbows / Fittings Stack Boots Stack Heads …

  5. Rectangular Duct Straight Start Collar – Ductwork Delivered LLC

    Ideal for use in residential and commercial ductwork installations, the Rectangular Duct Straight Start Collar provides a reliable, efficient connection that will enhance the performance of your HVAC …

  6. Start Collars - The Duct Shop

    One of the first steps in running a new HVAC, heating or air conditioning duct is to install a Start Collar into the existing plenum or duct. In this article, The Duct Shop will explain how simple this process …

  7. Starting Collars - The Home Depot

    Get free shipping on qualified Starting Collars products or Buy Online Pick Up in Store today in the Heating, Venting & Cooling Department.

  8. Rectangle Duct Start Collar - DuctWorks

    Rectangle Duct Start Collar. Duct Works Heating and Cooling is committed to making this website's content accessible and user friendly to everyone. If you need assistance using our website, we are …

  9. 3 1/4" x 12" Stack Start Collar Duct Fitting at Menards®

    This stack start collar is used for transitioning from a plenum of flat surface to wall stack duct. This product is proudly made in the USA using galvanized steel construction for durability and rust …

  10. GAF Master Flow 10 in. D 30 Ga. Galvanized Steel Stack Duct ...

    The Master Flow 3-1/4 in. x 10 in. Rectangular Stack Duct Starting Collar is made of durable, galvanized steel. It is used to transition from plenums (duct board or lined) or a flat surface to 3.25 in. x 10 in. …