EAI Trickle Window Slot Vent Easy Fitting Inside & Out - 400mm

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Horizontal Slot Surface Mount Wood Vent Covers and Returns with optional damper Available in over 60 species of wood to perfectly match the space intended

Premium Trickle Slot Vent for uPVC, Aluminium & Wooden Window - 300mm Commercial grade solid aluminum with modern architectural design for ceilings, walls, and floors This model can be used as a supply vent cover and return

how to win $1 Expella's Linear Slot Grille is a streamlined and discreet internal ceiling diffuser well suited to a ducted inline ventilation system, Shop Window Trickle Slot Vent 263mm White for uPVC Double Glazing & Timber Windows Reduces Condensation, Damp & Steam in Windows Fully Adjustable online at