The Hansgrohe Metris Select 320 Series Sink Mixer is designed to use with continuous flow water heaters. 223mm spout swivels up to 360 degree for smooth water flow. The start/stop button minimizes the effects of splashing thus ensuring continuous water flow. The non-return valve facilitates easy installation without any hassles. Ceramic disc cartridge provides added strength and prevents dripping. Lever handle makes it easy to use the mixer. Brass construction offers added strength and a longer life.