Flo-Dynamics' Coolant Maintenance System, No. CMS-120, comes with a single 20-gallon tank that can drain and refill a large-capacity cooling system in minutes, the company stated. Using pressure and vacuum, the CMS-120 speeds up the draining and filling process with push/pull technology and a vehicle's Flush-Face Quick Connect Coupler cooling system adapter, available separately. The company stated that using the CMS-120, a technician can drain a 14-gallon cooling system in roughly 10 minutes without the use of a drain pan. Operable on shop air with an included 13' hose, the tank comes with a fluid-level sight tube and is easily movable with heavy-duty 8" casters. Some adapters are included with purchase.