This is Atlantic Water Garden's Echo Chamber - Plastic Grate. We have a large selection of Filtration and other pond supplies from Atlantic Water Gardens.
Manufacturer's Description
As pondless water features and disappearing waterfalls continue to increase in popularity, Atlantic's Echo Chamber Series fills a much needed role. Whether used in combination with a FastFalls unit in a run or as a stand-alone unit in a fountain application, an echo chamber not only serves as a collection basin for pumping, but also amplifies natural water sounds and enhances the aural beauty of your water feature.Features a self-supporting polyethylene receptacle and a steel grate cover. As water hits stone and small boulders on the grate and falls into the bottom, an echo is produced - adding a new dimension to the fast growing segment of disappearing waterfalls.