DYN-O-TIES are flexible duct ties made by Duro-Dyne, designed to secure round flexible duct, connectors, outlets, fittings, etc. They provide a quick, reliable way to make flexible duct joints without needing screws, clamps or tape.

NSI Industries

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durodynecanada.com

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cdn.designair.com

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The “11-inch” refers to the maximum diameter of the duct or fitting that the 11-inch tie can wrap around. So an 11-inch DYN-O-TIE is sized for ducts/fittings up to 11″ in diameter.

NSI Industries

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They come in a pack of 50 ties.

Long Supply Inc

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NSI Industries

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Material: Nylon (often Nylon 6/6), in natural or UV-resistant (black) color depending on the specific model