QuARTz by ACO 37240 Plus Wavy Design Grate, 4-Feet Shallow 'v' profile to aide flow of water to outlet Channel bodies are manufactured in ABS. Grates are manufactured in 304 Stainless Steel Threaded coupling provided is compatible with any standard 2" shower drain Plastic, easy to cut adjustable leveling feet support the channel body during installation Designed for the 4ft shower with a Wavy Design Grate