Rough-in set for extended tub thickness to 3 4 (19mm) For extending the rough-in mounting materials of Geberit TurnControl bath waste and overflow drains For use with TurnControl Tubular Brass Rough-ins only For tub wall thicknesses 9 16-3 4 Not suitable with PushControl style Geberit drains Extended Overflow Shaft and Nut Extended Drain ScrewCountry of Origin: US Height: 1 Length: 2 Weight: 1 Width: 1