This tip-lever style bath trim set from Westbrass, features a 2-hole faceplate and grid style strainer. Gerber grid style strainer fastens to drain using a #10-24 screw. The strainer is a 1-3/8 in. NPSM (1-5/8 in. - 16 UNC-2A) thread and comes with a course to fine thread adapter (1-7/8 in. - 11. 5 x 1-5/8 in. - 16 adapter) for added versatility. Available in a variety of finishes, this closure plug is sure to complement your existing decorative fixtures.