Hydro-Logic® Stealth RO™ 300 Removes 98%+ of all contaminants in your tap water. Leading the industry in efficiency, the Stealth RO 300 has a 2:1 waste-to-product water ratio. Optional 1:1 ratio flow restrictor saves 50% more wastewater. Customized for gardening and hydroponics. The Stealth RO™ 300 produces 300 GPD of ultra-pure water. Includes 3-stage RO unit, 2 RO membranes, carbon filter, cleanable sediment filter, automatic shut-off cartridge, wall mountable metal bracket, garden hose connector, inline shut-off, 8 ft RO and drain line, 5 ft inlet line, filter wrench and instructions. Membrane Power Flush Kit now included. Built in the USA Unit size: 18.5" x 16" x 6" Weight: 12.5 lbs What's Included? 1. Stage 1—Pleated, Cleanable Sediment filter Reduces dirt, sediment, silt, rust, etc. 2. Stage 2—Green Coconut Carbon block prefilter Reduces chlorine and other toxins 3. Stage 3—2 x 150 GPD Reverse Osmosis Membrane Reduces PPMs of Total Dissolved Solids 4. Inlet Pressure Gauge with safe zones Shows dynamic line pressure and optimal operating zones 5. 5' white 3/8" inlet tubing, 8' blue 1/4" purified water tubing, 8' black 1/4" wastewater tubing Food grade LLDPE (linear low density polyethylene) tubing 6. Inline Shut-Off Valve with 1/4" quick connect, Turns system on/off manually 7. Double-Ended Filter Housing Wrench Large end for filter housing, small end for membrane housing cap 8. Flow Restrictor/Flush Kit Assembly with 1:1 and 2:1 Flow Restrictors Determines waste to purified water ratio 9. 3/8" QC X Garden Hose Connector Membrane Operating Limits: Very Important • MEMBRANE TYPE: Thin Film Composite • MAXIMUM OPERATING TEMPERATURE: 113° F (45° C) • MAXIMUM OPERATING PRESSURE: 100 psi • MAXIMUM FEED FLOW RATE: 2 GPM • MAXIMUM TDS: