The Timloc Cavity Wall Weep Vents Brick IW50CL Invisiweep Clear is a high-quality product made of plastic in the United Kingdom. It is designed to prevent water infiltration in cavity walls, with an invisible finish that seamlessly blends with the surrounding masonry. This product is approved by BS EN 13141-1:2004, ensuring its reliability and effectiveness in improving the weatherproofing of buildings. Perfect for use in both residential and commercial properties, this weep vent is a practical and efficient solution for managing water flow in cavity walls.