P0588-1022-00002 - FS21.5x2.0 - Fiber Laser Protective Window 21.5mm x 2mm to be used with Precitec® Fiber System Boost Laser Efficiency with Fiber Laser Protective Windows. Safeguard Optics & Ensure Precision for 1030-1090 nm Fiber Lasers. Shop Now for Enhanced Laser Performance! Best Fiber Laser Accessories. Reliable Laser Protection. Precision Optics. Shop Online. APC PN: FS21.5x2 Reference PN1: 9800021520FS / OEM #: P0588-1022-00002 (OG Y D21.5 d2 II), P0588-1022-00001, 633267-117 Reference PN2: P0588-1022-00002 Protective window OG Y D21.5 d2 II Reference PN3# PT317-1424 Size: 21.5 mm x 2.0 mm AR Coating: @1064/1070 nm Fits cutting heads: LightCutter (collimation side) YR30 (process side) Protective Windows: The contamination of the focusing lens is one of the main for poor laser performance and potential down time. The laser cutting head are very sensitive to any type of contamination. American Photonics has the best quality of protective windows to protect the focusing lens against contamination. Our protective window is a barrier (debris shield) between the lens and the metal sheet. To protect your investment Disclaimer: All parts advertised for sale are made by or for American Photonics. Amada®, Bystronic®, Cincinnati®, Mazak®, Mitsubishi®, Laserlab®, Laserdyne Prima®, Precitec®, Strippit®, Trumpf® and any other trademarks not owned by APC are registered trademarks of the respective owners with which they are associated. APC is an independent site and company that is not affiliated with above-named manufacturers and the use of the names, trademarks and part numbers is for reference, identification and compatibility purposes only.