Watco 58301-cb lift & turn tub closure, 1-5/8″ x 16-thread body, chrome brushed features: metal strainer body, 1-1/4″ deep designed for heavy-duty use in hotels, motels,and rental property replaceable, drip-proof buna-n-seal approvals: iapmo, sbcci, csa operation: lift stopper with hand and turn to open. Turnand release to close. thread size: 1-5/8″ o.d. – 16 thread x 1-1/4″ body