U-Channel for 3/32", 3/16" and 1/4" Glass. Universal Clear Polycarbonate U-Channel with Soft Bulb Seal can be used on inswing, outswing and sliding glass doors. Mounts on the edge of the door or panel. Color: Clear. Material: U-Channel: Hard Polycarbonate Bulb Seal: Soft Vinyl Length: 73"