GE GXK285JBL Twist And Lock Under Counter Dual Flow Water Filtration System Dual flow water filtration: Filtered water direct from your kitchen faucet. Filtered water faster - 1.1 gallons per minutes, compared to other systems Chrome filtration controller with filter replacement indicator: Filtered water when you want it. Controller easily turns filtered water on/off. Filtered water for drinking and cooking made easy! NSF certified: Reduces select pharmaceuticals, select VOCs, lead, chlorine taste and odor and other contaminants Twist and lock design: Provides for easy, tool-free, no-mess filter replacement Six-month filter life: Filter (FQK2J) should be replaced every six months for best filtration results.Plumbing Connections:3/8" push to connect