Drain waste trap 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 in one inner diameter: 25mm (3/4" BSP). Specifications: - Material: black finished steel; - Inner diameter: 25mm (3/4" BSP); - Outer diameter: 70mm; - Height: 25mm.