Reddi Woven Pile Weatherstrip includes Pile, Fringe, Fin Pile and Mono Pile series. Windows fitted with Reddi Pile consistently achieve CLASS3- "severe weather rating" during independent tests for air and water penetration, in accordance with BS 6375 and BS 5368, and also exceed Grade-II standards of Graduation of Air Permeability GB 7101-86; Meet the rigorous standard of the Architectural Aluminium Manufacturers Association of the USA(AAMA701.2-1974).