Purified water grows healthier, more beautiful and longer-lasting plants than ordinary tap water. Your plants will flourish with our "better-than-rain" quality water. SpectraPure manufactures a wide range of the highest quality water purification equipment available. FEATURES: RO at an economical price600 gallons per day high-rejection Thin Film MembranesHigh-Capacity 1-micron carbon block pre-filter eliminates chlorine, herbicides, etc.High efficiency 1-micron sediment filterDurable no rust mounting bracketGarden hose adapter and filter wrenchDimensions 15" x 7" x 16" BENEFITS OF REVERSE OSMOSIS WATER: Maximizes nutrient uptake for faster growth and greater yieldsEliminates harmful mineral build-up which damages delicate root hairs.Stabilizes pH of re-circulating rockwool, NFT and Ebb & Flow hydroponic systemsUltra-high rejection TFC membrane eliminates up to 99% of harmful minerals, fluorides, chlorides, alkalinity, heavy metals, agricultural and industrial pollutants, chloramine, PCB's, MTBE, and arsenic.