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Penetration Seals

Evergreen Penetration Seals are designed to stop leakage of grease or liquids from inside the hood or duct to outside the hood or duct at the hole created for the fire suppression system piping. All penetration seals are UL/ULC listed and meet the requirements of NFPA 96, 17 and 17A. The chrome plated Evergreen Penetration Seals are the logical alternative to the required welding round the hole all while providing structural support for the system piping making the installation stronger and reducing the need for pipe hangers.