Westbrass Roman Tub Drain Trim fits 3-9/16 in. OD and 2-7/8 in. hole-to-hole replacement top only, with a 4-1/4 in. tile square, for a roman tub drain. Made of solid brass this product is manufactured to fit already installed roman tub drains from Oatey (#151), Casper (140) Plumbing Products EZ-Test 2, and equivalent models from other manufacturers. Available in a variety of stylish finishes, this item is sure to complement your existing fixtures.