The Oceanic 4-Stage Hydroponic Reverse Osmosis System provides up to 100 GPD of economically filtered reverse osmosis water, removing harmful substances such as, chlorine, heavy metal ions, total dissolved solids, and general chemical reduction from tap water, using standard 10” cartridges. Features: - Garden hose adapter makes it easy to connect to a garden hose tap - 1/4 inch Color coded tubing simplifies plumbing - 5ft of ¼” Blue, Black and Red Polyethylene Tubing helps with plumbing setup - Built-in wall mount bracket allows the unit to be hung and secured in place. Pre-Assembled Unit includes a 100 GPD Membrane, (1) 5-Micron Pre-filter Sediment Cartridge, (2) 5-Micron Coconut Shell Solid Activated Carbon Block Filters Cartridges. OPERATING REQUIREMENTS: Minimum water pressure: 40 PSI, Maximum water pressure: 80 PSI, Optimal water temperature: 77*F (25*C), Maximum water temperature: 105*F (40.5*C).Typical rejection rate: 1:3 WHAT TO EXPECT: This RO system purifies 1 gallon of water every 14-17 min (very slow, water purification output depends on membrane Gallons Per Day rating, water dripping not flowing). RO membrane splits water with 0.0005 micron filtration, approximately 1000 times more effective than any water filter without membrane). We recommend to collect water in advance (every day or every second day) to always have it on hand. Use any kind of water container (glass or plastic).