Allvent 250MM to 150MM Four-Way Double BTO Junction

The Allvent ALV331 is a four-way poly duct junction designed to connect one 250mm duct to three 150mm duct branches within a ventilation system. Its robust UV-stabilised construction and smooth internal lines make it a practical choice for residential, commercial and light industrial installations where one larger main duct needs to divide into three smaller runs. It can be considered for subfloor ventilation, roof space air transfer, workshop extraction, plant rooms and multi-room exhaust systems.

  • Double BTO duct fitting
  • Four-way junction
  • One 250mm connection
  • Three 150mm connections
  • Poly construction
  • UV stabilised
  • Robust design
  • Smooth internal lines
  • Suitable for ventilation ducting systems
  • Suitable for residential, commercial and light industrial applications
  • Connection sizes 250 x 150 x 150 x 150mm

Click here for Data Sheet

SKU ALV331
Brand Allvent

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