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Firestop Listings <br />Numerous firestop manufacturers have tested their products with PEX <br />tubing. These tests establish the installation procedures for installing the <br />firestop around the PEX tubing at the penetration. These test assemblies <br />are divided into sections based on the type of penetration (e.g., wall, floor <br />and ceiling, etc.). <br />Not all caulks are approved for all penetrations. Ensure the penetration <br />is sealed in accordance with the appropriate test assembly using that <br />manufacturer's recommended type of firestop material. Larger penetrations <br />may not use a caulk type of firestop, but rather a wrap or collar assembly <br />may be required. Refer to the respective firestop manufacturer for more <br />information pertaining to the appropriate application of their products. <br />� uponor www.uponor-usa.com <br />