HydroGardener TMA-HG-Pro Pro Advanced Remineralizing Garden and Hydroponic Reverse Osmosis Water Filtration System, White Great for Well Water - removes up to 98-percent of iron, manganese, chemicals, heavy metals, sediment, and other contaminants - Better Water for Improved Yields Great for Well Water - operates at pressure down to 35 psi Built-in Cal/Mag delivery system - adds 15-30 ppm cal/mag Includes a variety of connections and fittings to make for easy installation - under sink 3/8-Inch compression feed water adapter and garden hose adapter High Efficiency Reverse Osmosis Membrane and permeate pump - up to 130-Gallon per day and 1 to 1 waste ratio