Window Trickle Slot Vent 263mm White for uPVC Double Glazing

A 550mm long, 22mm wide Greenwood trickle vent Includes internal and external canopies which neatly cover routed slots to comply with building regulations

Trickle vents are used extensively in the UK and Europe integrated into window frames to provide minimum ventilation requirements for naturally ventilated

evo888 slot Designed and developed in the UK, Yale's SlotVent provides an effective through frame background ventilation solution, allowing fresh air in and stale air out

abcd slot In my UPVC windows there is rain deflector grill cover on the outside and a cover with a shutter on the inside A slot about 10mm high is cut