L Vent – Slimline Through Frame Slotvent

Greenwood L Vent provides an unobtrusive ventilation solution in line with current Building Regulations and has been designed for use on low profile window frames with limited slot heights.

  • Small 10mm rout.
  • Available in bottom operated only.
  • Provides up to 3200mm² equivalent area.
  • Suitable for low profile window frames.

The internal mechanism is controlled via a bottom-mounted lever and the external canopy is supplied with an integral fly screen. The hooded exterior cover prevents weather ingress. The L Vent is manufactured from rigid PVCu and is available in 2000 and 4000 models providing 1600 and 3200 equivalent area respectively and a choice of colours. The 2000L also offers a noise reduction of 37dB when in the open position thereby providing a high level of sound reduction.

L Vent

Available in models 2000L and 4000L.

L Vent Dimensions

Ordering Information