2' White Linear Air Diverter for a 4 Slot Vent

MAP Aluminium SlotTrickle Vent - White - 375mm slot vent Simple to install, the S Vent is the most popular choice for passive ventilation provision in both new build and refurbishment projects slot loevestein You can use a slot port in the place of a round port The length will remain the same To calculate the port size in square inches you need to

slot betwin Draak white trickle vent 263mm for UPVC windows Quality window ventilation to prevent condensation & mould, ready for collection in 2 hours or next-day