Drain waste trap covers work as masking plates and can be used in sanitary facilities installation for tap valves, washing machines, dishwashers, and flush valves for urinals. Pipe collars are made from steel and have a gold color finish. Covers are sold individually with an inner diameter of 25mm (3/4" BSP). Specifications: Material: gold finished steel; Inner diameter: 25mm (3/4" BSP); Outer diameter: 70mm; Height: 25mm.