The MARLO MDAS Series Dealkalizer System is designed for larger industrial boiler-feed applications. Individual tank capacity ranges from 50,000 grain to 980,000 grain with continuous flow rates of 10-300 GPM. Tank diameters from 20″ to 72″ and service pipe connections from 1.25″ NPT to 3″ NPT are available. Multi-tank parallel, twin alternating, and triple alternating systems are available with a wide variety of timer and water meter controllers.