This Westbrass 4" OD Solid Brass Shower Strainer Cover is an easy to install replacement drain cover for your shower. The 4 inch OD grid measures 3-3/8 inch from hole to hole and comes with two (2) color matched screws to complete the installation. Available in a variety of stylish finishes, this item is sure to complement your existing fixtures. Westbrass Fine Decorative Plumbing since 1935.