• Operation. Pressing the top mushroom cap clicks the spring-loaded plug down to seal the drain and hold water in the sink; pressing it again pops it up to let water drain.
• Standard Fit. The threaded shank typically uses a standard 11⁄4-inch (32mm) BSP connection that screws into standard washbasin bottle traps or P-traps.
• Sealing. Includes silicone washers/gaskets (shown as the white ring on the box) to create a watertight seal against the top and bottom of the basin hole.