uPVC Trickle Vents

The Framevent HF  & HF + were developed to make it easy to achieve the requirements of Approved Document F 2021 whilst still maintaining the smooth, rounded, aesthetic line synonymous of the Framevent range.

The RW Simon Ltd Framevent HF (hi-flow) achieves 4,191mm2 EA on a length of only 415mm & the HF + (hi-flow +) achieves 5205mm2 EA on a length of 525mm.

Manufactured in the highest quality U.V. stabilised UPVc. Durable, easy to fit and fully tested.

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Additional information

Weight 500 g

High Flo 415mm, High Flo+ 525mm


White, Black, Tan, Brown, Grey, Chartwell Green


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