F40-Ac(2Nd Gen) Reverse Osmosis Water Filter Countertop with UV, Natural Remineralization,10-Stage RO Filtrations, 4:1 Pure to Drain, Ph9 Alkaline Water Purifier,Bpa Free,Nsf/Ansi/Ul/Fda
Description
| Style | Heating |
| Product Dimensions | 16.77"L x 11.85"W x 17.99"H |
| Capacity | 5 Liters |
| Material | Plastic |
| Installation Type | Countertop |
| Model Name | NF-F40AC |
| Package Information | Bottle |
| Special Feature | function(f) {var _np=(window.P._namespace("DetailPageProductOverviewTemplatesJava"));if(_np.guardFatal){_np.guardFatal(f)(_np);}else{f(_np);}}(function(P) { P.when('A').execute(function(A){ A.on('a:truncate:po-attribute-truncate-1:updated', function(data) { var isTruncated = !data.truncateInstance.getIfTextFits(); var seeMoreElement = document.getElementById('po-attribute-see-more-id-1'); if(seeMoreElement) { seeMoreElement.style.display = isTruncated ? '' : 'none'; } }) }); })); Adjustable Temperature, Fast Heat Dissipation, Hot & Room temperature,Filter Lifespan 24-48 months, LED Display, Natural Remineralization, 10-Stage RO Filtrations, 5-Temp Settings,, UV sterilization,Child Lock See more |
| Purification Method | Reverse Osmosis |
| Included Components | Filter, Water Bottle, Instruction Manual |
- 【Guaranteed Safety –SGS-Certified Countertop Reverse Osmosis Water Mineralization System】 The NatureFlow F4 (2nd Gen) delivers superior water quality and taste through our 10-stage reverse osmosis and mineralization process, far surpassing standard products. Equipped with a 0.0001μm RO membrane and exclusive three-cartridge filtration technology, it provides multi-layer purification for exceptional purity. Removes up to 99.99% of harmful contaminants — including chlorine, lead, heavy metals, PFAS, and over 1,000 other impurities — without chemical scale inhibitors, and effectively eliminates microplastics. Fully compliant with NSF/ANSI 58 and UL safety standards.
- 【Health–Natural Mineralization Technology】 Unlike other systems that add chemicals to water, NatureFlow uses a 100% natural process to restore essential minerals such as potassium (K), calcium (Ca), sodium (Na), magnesium (Mg), strontium (Sr), and metasilicic acid (H₂SiO₂). By mimicking the natural formation of spring water, the system activates beneficial minerals within the filter and reintroduces them at a precisely engineered ratio. The result is weak alkaline mineral water (pH 9.0–9.5) that helps neutralize body acidity and supports overall wellness.
- 【Convenience–Instant Hot in 3 Seconds】 Enjoy 5 temperature options ranging from 77°F to 210°F( 77°F, 120°F, 150°F, 180°F, 210°F), perfect for coffee, tea, and more. With instant heating in just 3 seconds, there’s no waiting for your ideal drink. The system also features adjustable temperature buttons, making it quick and easy to select your preferred temperature.
- 【Cost Savings–High Efficiency】 With a 4:1 pure-to-drain ratio, the F4(2nd Gen) is more efficient than traditional RO systems, reducing water waste, lowering utility costs, and promoting environmental sustainability. It offers one of the highest water recovery rates in the market. The filtration system lasts 2–4 years, twice the industry average, replacing up to 12,000 bottles of water and saving up to $9,000 annually.
- 【Smart Living – Intelligent Controls】The F4(2nd Gen) features a 180°rotatable digital display for effortless tracking of temperature, volume, filter lifespan, and cleaning cycles. Equipped with a child safety lock, automatic cleaning function, and water replacement reminders, it combines modern convenience with peace of mind.
- 【Worry-Free Purchase】 At NatureFlow, we are committed to delivering premium products and exceptional customer service. The product comes with a corresponding instruction manual, which provides detailed operating instructions for functions such as temperature selection, UV settings, and water distribution. For any questions or assistance, our dedicated support team is ready to help.
Product description
Natureflow RO Series
Hot&Room temperature | Cooling Function | Hot & Cold & Room |
5 Level(77℉-210℉) | Temperature Levels | 11 Level(41℉-210℉) |
Curved Display | Smart Control | 10.2"Premium Display |
Natural mineral | Water Quality | Natural mineral |
UV Sterilization | ||
Alkaline water | ||
TDS Monitoring |
Hot&Room temperature | Cooling Function | Hot&Room temperature |
5 Level(77℉-210℉) | Temperature Levels | 5 Level(77℉-210℉) |
Curved Display | Smart Control | Curved Display |
Natural mineral | Water Quality | Natural mineral |
UV Sterilization | ||
Alkaline water | ||
TDS Monitoring |
- NF-Y60
- NF-F40
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Core Technology:How can the NatureFlow Water Mineralization System transform the tap water into mineralized water?
NatureFlow Water Mineralization System is equipped with a Pre-RO filter,a aerospace-grade RO filter and a mineralization filter,to utilize 10-stage deep filtration combined with mineralization technology,meeting NSF/FDA/ANSI 53/FCC etc standards.
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Purchase Guide:how to choose between mineral water and pure water?
Water purification products on the market overlook the water’s natural properties.NatureFlow invented mineral rejuvenation technology to transform tap water into mineralized water,allowing you to enjoy high-quality water with a sweet smooth taste.
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Misconception:Is high TDS value indicative of better water quality?
Purified water (e.g., RO water) has a 0-20 TDS because it lacks minerals.NatureFlow's advanced mineral rejuvenation technology ensures a balanced and healthy mineral composition, resulting in a 30-150 TDS ,similar to premium bottled mineral water.
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Quick Instruction:How to quickly get started with it?
When a new machine or a new filter cartridge is used for the first time, it will automatically start the cleaning procedure,which is expected to take approximately 20 minnutes.Any questions ,please infer to the mannul or the vedio.
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Filter Replacement and Purchase Guide:When do I need to replace the filter element?
NatureFlow Water Mineralization System is equipped with a filter cartridge reminder function. When the filter cartridge indicator light on the display screen turns red, it indicates that your filter cartridge needs to be replaced.

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