Underfloor Horizontal Extension Sleeve

Designed to extend the reach of the underfloor vent for varying cavity and wall leaf widths.

Top Extension Sleeve

Product Code: HD 9660T
140mm long for an outer leaf width of up to 170mm

Bottom Extension Sleeve

Product Code: HD 9660M
155mm long for an inner leaf width of up to 215mm

Downloads

Danelaw Wall Cavity and Underfloor Ventilation Datasheet
HD 9660M Drawing
HD 9660T Drawing
  • Product code
    HD 9660M
  • Colour
    Black
  • Made from
    Polypropylene
  • Additional Links

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