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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 /> uponorwww.uponor-usa.com <br />