304 stainless steel swimming pool. Surface treatment: mirror polished, more durable than brushed finish. Water pressure can relax your shoulders, back, and head. Listening to the sound of flowing water can be soothing, relaxing, and pleasurable. Waterfalls can beautify your swimming pool or pool. The connection thread below the cascade can be connected to your existing pump by adding a tee and valve to the discharge port or a dedicated pump.