This ADA approved coarse thread bath drain and stopper, replaces existing bath drains and provides positive closure. Designed for Fine thread, 1-1/4 NPSM drains. Solid brass shoe with plastic and brass stopper stem. Easily opened and closed by pressing the stopper. 1-3/8 in. NPSM tip toe style bath tub drain Fine thread drain shoe 1-3/8 in. NPSM (1-5/8 in. - 16 Designed by Westbrass, the Westbrass Tip Toe 1-3/8 in. NPSM Fine Thread Bath Drain in Polished Brass is built for lasting quality and everyday use. Shop at OJCommerce and explore our collection with free shipping on every order.