Ebbe Square Drain Riser is a drain head designed for Ebbe PRO and UNIQUE Drain Covers. Threads allows for easy height adjustment, dovetail undercuts lock the Riser to the grout and mortar, and the construction plug (included) keeps debris from getting into the drain during installation. It's threads are compatible with most clamp collar drains, including Sioux Chief, IPS, Oatey, and Jones Stephens. Ebbe America E4400 Features: Ebbe America E4400 Specifications: