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Strong steel construction with corrosion resistant finish
Fully resin bonded to X-weight backing cloth
Can be used for vertical or rear horizontal extension
Sandtoft Standard attern
25 x Terracotta Brick Tunnel Weep Vents Invisible Cavity Wall Water Outlet Air Bricks Strong steel construction with corrosionTerracotta Tunnel Weep Vents Pack of 25 Low profile invisible tunnel weep vents. Suitable for commercial and domestic use. Satisfies NHBC standards. British made manufactured to BS EN ISO 9001. Dimensions: 100mm x 64mm x 10mm. The product can be slotted between two bricks and mortared into position. It provides an unobtrusive ventilation point for the cavity behind. Other colours available in our shop. Use Any situation where water must be discharged