Delta Faucet RP31558SS Tub Drain, Stainless
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<b>[Product Information]</b><br>
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<li>Stopper screw threads are 5/16 -Inch - 18</li>
<li>Waste plug is 11/2 -Inch x111/2 NPSM</li>
<li>Includes both stopper assembly and waste plug</li>
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