Wall mounted tap pipe covers work as masking plate and can be used in the sanitary facilities installation like tap valves, washing machines, dishwashers and flush valves for urinals. Pipe collars are made from steel and in black colour finish. Covers are sold in singles and come in two different middle hole sizes: 21mm or 26mm. Specification: - Material: black finished steel; - Inner diameter: 21mm (1/2" Inch BSP); - Outer diameter: 70mm; - Height: 8mm.