TIMCO Grey Timloc Invisiweep Multi Function Wall Weeps Pack of 50

For discharging water from external walls Suited for use with the timloc cavity tray system, over external lintels and on external masonry walls Venturi effect outlet tube that reduces water pressure, allowing for optimal drainage Satisfies all nhbc requirements and meets British standards: BS5250, BS5628 and BS8215 Integral 4 mm vermin barrier and rainwater baffle, Weight: 0.90169065158 Pounds, Manufacturer: Timloc