RO-25-LPH Is a Stainless Steel :- skid.High quality Pump & Adapters are used, High quality membranes, components and filter cartridges. Low cost of maintenance.5 Micron Sediment Filter: With only five micron rating. It is effective in removing dirt, rust and sand particles. Granular Activated Carbon Filter: It takes out 99% of the chlorine and organic chemicals. It provides enhanced reduction of taste, odor, and color. 5 micron Carbon Block Filter : It removes biological characters from water also blocks some content which passed from sediment filter and Gac filter. 2 Pcs Of Reverse Osmosis Membrane A thin film composite (TFC) high quality membrane that processes 80 x 2 = 100 gallons per day. It remove the following hard water contaminants that may be present in your water: lead, cooper, barium, chromium, mercury, sodium, cadmium, fluoride, nitrite, nitrate, and selenium. Post Carbon Filter: This carbon post filter removes objectionable tastes and odors to enhance the quality of your drinking water. We are using NSF approved post carbon to guarantee the taste of water. RO 25 LPH Is Designed to supply on demand drinking water filtration for restaurants, small businesses, and large families