What is this extra vent in my window called?

What is this extra vent in my window called? window slot vent DO NOT FIT THE CLIPS INTO YOUR NEW VENT AND ROUTS YET! Safely remove your existing trickle vents, taking care not to damage the the new vent to window slot Trickle Vent Retrofit Dublin Trickle Vents or trickle ventilators are a component within a window or a door, situated at the upper part of the frame Their

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bocoran slot gacor hari ini pragmatic Explore our range of old-fashioned slot vents from Sekelskifte - period-appropriate products for renovation & interior design Buy online! Trickle vents allow for a small amount of ventilation even when the window or door is closed These vents are designed to help prevent or minimise problems