The High Flow 'HF' Framevent was developed to make it easy to achieve the requirements of Approved Document F 2021 while maintaining smooth, rounded design in keeping with the Framevent range.

• Independently tested to BS EN 13141-1:2019
• Water tightness of 400pa
• Sleeves are available on certain models to ensure compliance with BS 7412:2007
• Snap-on quick fit end caps
• Integral fly screen in external hood
• Can be fitted to give updraft or down-draught
• Full length from end cap to end cap is 525mm long 

Framevent HF+ Db:

• Open: 27 dB
• Closed: 35 dB

HF+ Slot Size:

• 525mm Overall length = 5205mm2 EA
• 230mm - 10mm - 230mm x 13mm slot