Chrome Plated Brass Clawfoot Shower Riser Soap Holder Part of The Katherine Collection. Keep your tub neat and organized with this smooth chrome-finished brass soap holder . This particular basket is designed to attach around the riser of an Add-a-Shower unit, holding your soap within easy reach. The soap dish is 4 and 5/8 inches wide and 4 and ½ inches from the outside of the mounting bracket to the edge of the basket.It is heavy cast bass chrome plated. This Soap Dish attaches to the Shower Riser. It will fit both the 3/8 IPS Riser and the 1/2 Risers Powered by eCRATER . List your items fast and easy and manage your active items.