RO-3+2 Under-Sink RO Water Purifier with Iron Rack

<div class="product-detail"> <img src="https://www.qitengoem.com/zb_users/upload/2026/07/20260708195100178356546060697.png" alt="RO-3+2 Under-Sink RO Water Purifier with Iron Rack" style="display:block;max-width:480px;height:auto;margin:0 auto 20px;border:1px solid #eee;" /> <h2 style="color:#1A3C6E;border-bottom:2px solid #1A3C6E;padding-bottom:6px;">Product Overview</h2> <p>This under-sink RO water purifier uses a <strong>5-stage (3+2) filtration process</strong>. The 4th stage features a high-flow <strong>400 GPD reverse-osmosis membrane</strong> (tankless design), delivering about 1.05 L/min of purified water on demand — ideal for household cooking, drinking and beverage preparation. An optional <strong>iron rack</strong> provides sturdy under-counter / wall mounting.</p> <h2 style="color:#1A3C6E;border-bottom:2px solid #1A3C6E;padding-bottom:6px;">Key Features</h2> <ul style="line-height:1.9;"> <li><strong>High Flow:</strong> 400 GPD RO membrane, tankless design, fresh water on demand.</li> <li><strong>Deep Purification:</strong> 5-stage filtration at 0.0001 μm removes heavy metals, bacteria, viruses, scale, chlorine & odor.</li> <li><strong>Food-Grade:</strong> Food-grade housings & lead-free 304 stainless faucet.</li> <li><strong>Space-Saving:</strong> Compact under-sink mounting with iron rack; tool-free filter cartridge replacement.</li> <li><strong>Smart Option:</strong> Optional smart filter-life indicator / TDS display faucet.</li> </ul> <h2 style="color:#1A3C6E;border-bottom:2px solid #1A3C6E;padding-bottom:6px;">5-Stage Filtration System</h2> <table style="width:100%;border-collapse:collapse;margin:10px 0 18px;font-size:14px;"><thead><tr><th style="background:#1A3C6E;color:#fff;padding:8px;border:1px solid #ccc;text-align:left;">Stage</th><th style="background:#1A3C6E;color:#fff;padding:8px;border:1px solid #ccc;text-align:left;">Filter</th><th style="background:#1A3C6E;color:#fff;padding:8px;border:1px solid #ccc;text-align:left;">Function</th><th style="background:#1A3C6E;color:#fff;padding:8px;border:1px solid #ccc;text-align:left;">Replacement</th></tr></thead><tbody><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Stage 1</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">PP Melt-blown (5μm)</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Removes sediment, rust, suspended solids</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">6 months</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Stage 2</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">GAC Granular Activated Carbon</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Adsorbs chlorine, odor, some organics</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">6–12 months</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Stage 3</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">CTO Compressed Carbon</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Deep adsorption, improves taste</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">6–12 months</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Stage 4</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">RO Membrane 400G</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Core desalination; removes heavy metals, bacteria, viruses</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">24–36 months</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Stage 5</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Post Carbon T33</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Improves taste, prevents re-pollution</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">12 months</td></tr></tbody></table> <h2 style="color:#1A3C6E;border-bottom:2px solid #1A3C6E;padding-bottom:6px;">Technical Specifications</h2> <table style="width:100%;border-collapse:collapse;margin:10px 0 18px;font-size:14px;"><thead><tr><th style="background:#1A3C6E;color:#fff;padding:8px;border:1px solid #ccc;text-align:left;">Parameter</th><th style="background:#1A3C6E;color:#fff;padding:8px;border:1px solid #ccc;text-align:left;">Specification</th><th style="background:#1A3C6E;color:#fff;padding:8px;border:1px solid #ccc;text-align:left;">Parameter</th><th style="background:#1A3C6E;color:#fff;padding:8px;border:1px solid #ccc;text-align:left;">Specification</th></tr></thead><tbody><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Product Type</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Under-sink RO Water Purifier</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Inlet Pressure</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">0.1–0.4 MPa</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Stages</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">5-stage (3+2)</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Operating Temp.</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">5–38 °C</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">RO Membrane</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">400 GPD (~1514 L/day)</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Inlet TDS</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">< 1000 ppm (max 2000)</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Flow Rate</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">~1.05 L/min</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Power</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">220V/50Hz or 110V/60Hz</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Filtration Precision</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">0.0001 μm</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Booster Pump</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Built-in 24–36W silent</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Waste Ratio</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">~1.5 : 1 (adjustable)</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Housing</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Food-grade PP / AS</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Storage</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Tankless design</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Faucet</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">304 stainless, lead-free</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Tubing</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">1/4" / 3/8" PE</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Dimension</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">~420×140×380 mm</td></tr></tbody></table> <h2 style="color:#1A3C6E;border-bottom:2px solid #1A3C6E;padding-bottom:6px;">Applications</h2> <ul style="line-height:1.9;"> <li>Household kitchen direct drinking & cooking</li> <li>Office & pantry</li> <li>Small commercial: café, tea shop, restaurant</li> <li>Hard-water / high-TDS regions</li> </ul> <h2 style="color:#1A3C6E;border-bottom:2px solid #1A3C6E;padding-bottom:6px;">Packaging & Shipping</h2> <table style="width:100%;border-collapse:collapse;margin:10px 0 18px;font-size:14px;"><thead><tr><th style="background:#1A3C6E;color:#fff;padding:8px;border:1px solid #ccc;text-align:left;">Item</th><th style="background:#1A3C6E;color:#fff;padding:8px;border:1px solid #ccc;text-align:left;">Specification</th></tr></thead><tbody><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Packing</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">1 unit/color box, reinforced outer carton</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Gross Weight</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">~12–14 kg</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Carton Size</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">~47×39×39 cm (config dependent)</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Loading</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">~1–2 units per carton</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">MOQ</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Negotiable; ≥ 50 units for OEM quote</td></tr><tr><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">OEM / ODM</td><td style="padding:7px 8px;border:1px solid #ddd;vertical-align:top;">Logo, packaging, voltage (110/220V), plug (EU/AU/UK/US) customizable</td></tr></tbody></table> <h2 style="color:#1A3C6E;border-bottom:2px solid #1A3C6E;padding-bottom:6px;">Certifications</h2> <ul style="line-height:1.9;"> <li>CE certified (standard configuration)</li> <li>NSF/ANSI 58 (RO system) certification available on request</li> <li>RoHS material compliant; output meets direct-drinking standard (depends on local water & installation)</li> </ul> </div>