Description guide: 1st internal width - 2nd internal height - 3rd thickness | M = metres, mm = millimetres.
Our 4mm plastic U channel has an internal height of 12mm and a thickness of 1.5mm. Produced from external grade rigid PVC in the UK, the 4mm plastic U channel comes in black and white. Can be used for indoor or outdoor applications. Many other sizes of plastic U channels are also available.