The FAMCO SCB Storm Collar – B Vent is used with the metal pipe flashings. This product is used to divert water from running down the pipe and comes equipped with an adjustable tab. Quality constructed of heavy 26 gauge Galvanized steel. The FAMCO SCB Storm Collar – B Vent is used for a B-Vent, or double wall pipe and has a 5/8 inch to 1 inch oversized opening. Sizes available are 3⅝ inch, 4⅝ inch, 5⅝ inch, 6⅝ inch, 7⅝ inch, 8⅝ inch, 9⅝ inch, 10 inch, 13 inch, 15 inch, 17 inch, and 19 inch. FAMCO SCB Storm Collar – B Vent is manufactured by Famco in the United States and comes with a 1-year warranty against product defects and workmanship. If you have any questions about this product, please refer to the FAQs above or feel free to contact us by phone or email.
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OUR PRODUCT GUARANTEE FAMCO prides itself on Quality Built Products manufactured from quality raw materials. All products are guaranteed to be free of defective material or workmanship for a period of one year from the date of delivery. During the guarantee period, if any parts prove defective, they will be replaced free of charge. Please click 
Doug K. (verified owner) –
Seems to be what I needed haven’t installed it yet.
Ron (verified owner) –
Very nicely made shipping was expensive though
Terry Norris (verified owner) –