Allvent FB250 250MM Ventilation Filter Box

The Allvent FB250 ALV379 is a 250mm in-line ventilation filter box designed for larger ducted air systems where a dedicated filtration point is required. Its robust box-style format and round duct connections make it well suited to residential and light commercial ventilation installations, including whole-home systems, larger supply air setups, offices, apartments and utility spaces. The filter box is designed to be installed after the fan and, where applicable, after a noise attenuator or duct heater, creating a practical filtration stage within the ventilation system while keeping the duct layout organised and serviceable.

• Ventilation filter box
• 250mm duct connection
• In-line duct installation
• Designed for use in ventilation systems
• Install after the fan
• Install after the noise attenuator where used
• Install after the duct heater where used
• Suitable for larger residential ventilation systems
• Suitable for light commercial ventilation systems
• Suitable for supply air and ducted ventilation applications
• Dimension A 355mm
• Dimension B 320mm
• Dimension C 235mm
• Dimension D 250mm
• Dimension E 352mm

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