Stage 1 - Sediment Filter 5 micron. Stage 2 - GAC Carbon filter. Stage 3 - Carbon Block Filter 5 micron.Stage 4 - RO Membrane/s (400 GPD). Stage 5 - Carbon Filter 2.5" x 12" Filter for Odor reduction and Taste improvement. 20 Housing - All Quick Connect. This System will come with Color Coded Tubing for easy installation. Membranes are tested at 77 F degrees water temp, 60 PSI water pressure, 500 TDS for most efficient production ratings. Lower Water Temperature and higher tds will reduce ro water product. Do not run booster pump continuosly. Titan Water Pro is your "Clean Water Solutions". This item is in the category "Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Purification\Water Filters". The seller is "titanwaterpro" and is located in this country: US. This item can be shipped to United States, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, Korea, South, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi Arabia, United Arab Emirates, Qatar, Kuwait, Bahrain, Croatia, Republic of, Malaysia, Brazil, Chile, Costa Rica, Panama, Trinidad and Tobago, Guatemala, Honduras, Jamaica, Aruba, Belize, Dominica, Grenada, Saint Kitts-Nevis, Turks and Caicos Islands, Bangladesh, Brunei Darussalam, Bolivia, Egypt, French Guiana, Gibraltar, Guadeloupe, Iceland, Jordan, Cambodia, Luxembourg, Nicaragua, Peru, Pakistan, Paraguay, Vietnam, Uruguay, Ecuador, Guernsey, Jersey, Liechtenstein, Monaco, Macau, Martinique, Canada, South Africa, Colombia, Antigua and Barbuda, Saint Lucia, Barbados, Bermuda, Cayman Islands, Sri Lanka, Maldives, Oman, Reunion, Montserrat.