Wedge Packers – Polypropylene – Frame InstallationProduct Overview Enhance the precision and stability of your window and door installations with these adjustable wedge packers. Designed for fine tuning frame alignment, these packers allow for precise leveling and plumb adjustments without the need to remove fixings. With an adjustment range of 9 14mm, they enable accurate on site alignment. The serrated faces lock securely to prevent slippage, while the rigid, non compressible polymer provides