Watco’s IdealLav drain includes a grid strainer and a stopper. The removable grid strainer is installed with an O-ring and is easily replaceable without removing the lavatory drain. The replaceable grid keeps the drain looking good and prevents hair and jewelry from entering the drain. The drain also features an internal stopper that seats below the grid strainer and holds water overnight. Available in plastic or brass, the drain fits standard sinks with overflows and is ideal for new installations or replacements.
Source: PM Magazine Kitchen and Bath