Major Industries manufactures a full line of translucent panel daylighting systems, including Guardian 275® translucent systems that feature Ultimate Series™ face sheet technology. Developed in conjunction with Crane Composites®, the world's largest manufacturer of architectural fiberglass, the Ultimate Series™ features industry-best warranties and dependability. Guardian 275® systems also feature built-in water management and are custom-designed to fit your needs and requirements. Guardian 275® systems are available in 1", 2.75" and 4" configurations, and we also offer a translucent adapter panel assembly for easy retrofit into existing glass curtainwall framing.