The Tri-Zone Waterfall Control Handle Gray is a high-quality replacement part designed for Marquis Signature Series spas from 2016-2019. With its gray design and clear directional markings—two darker gray arrows and a blue arrow marked "WF" for Waterfall—it offers a sleek, functional way to control the flow of water to your spa's waterfall feature. This handle allows you to easily turn the waterfall on or off, enhancing your spa experience with soothing water sounds and visual appeal. Whether replacing a damaged part or upgrading your spa's functionality, this handle ensures smooth and reliable operation.