To get durable coupling and accessories for your uPVC doors and windows, you don’t need to go beyond us. From Coupling T and coupling 60mm to SW Double Glass Bead, FW Double Glass Bead, SD Screen Sash, SD Screen Sash Mullion, and Coupling Corners (60X60, 80X80, 60X88, 60X80, and 88X88), we have them all.