Acoustic Insulated Plenum Box for HVAC Linear Slot Diffusers
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Ventmann Acoustic Boxes are precision-engineered plenum boxes designed specifically for Ventmann linear slot diffusers, ensuring balanced airflow and enhanced acoustic performance. By equalising the internal pressure profile, they deliver uniform air velocity across the full diffuser face, improving comfort and system efficiency.
Each acoustic plenum box is fitted with a high-performance foam insert to significantly reduce airflow noise, making them ideal for residential, commercial, and high-end architectural HVAC installations where acoustic control is critical.
Ventmann Acoustic Boxes feature pre-scored knock-outs for 75mm, 125mm, and 160mm duct connections, allowing fast and flexible installation. Duct spigots (by others) are securely fixed to the exterior using suitable technical screws, ensuring a reliable and airtight connection.
Available in three lengths (625mm, 1000mm, and 1250mm) and two width codes (A and B), Ventmann Acoustic Boxes provide seamless compatibility with linear slot diffusers, delivering quiet operation, even air distribution, and a professional finish for both new-build and refurbishment projects.

