compatibility: Ensures effective use on brick, clay and concrete walls, providing reliable performance in a wide range of installation scenarios. Contemporary HVAC optimization: The modular design enables easy modernization, minimizes complexity, and eliminates the need to dismantle existing systems, adding flexibility and economy. Sustainable protection: The kit delivers longlasting airtightness and robustness thanks to special sealing solutions. It helps reduce energy loss, fixes sealing issues, and supports consistent HVAC functionality with sustainable performance. Time saving full configuration: Reinforcement components and insulation protection are included, allowing quick installation of the HVAC wall grommet and line coverage without delays. Applications and use scenarios: Residential retrofit on brick, clay or concrete walls where a HVAC passthrough requires airtight sealing and fast grommet installation. Renovation of commercial spaces or offices that require flexible, modular HVAC upgrades without dismantling existing systems. construction or major refurbishment projects that benefit from reinforced, insulated wall protection and rapid installation of line coverage across various wall materials.