--- product_id: 570117167 title: "8 Stage Tankless Reverse Osmosis System NSF Certifed TDS Reduction 500GPD RO Water Filter System Under Sink Reverse Osmosis Water Filtration System for Home Kitchen Apartment (RMS-WP-RO500)" brand: "reinmoson" price: "β‚±16155" currency: PHP in_stock: false reviews_count: 10 url: https://www.desertcart.ph/products/570117167-8-stage-tankless-reverse-osmosis-system-nsf-certifed-tds-reduction store_origin: PH region: Philippines --- # 500 GPD ultra-fast flow 98.2% TDS reduction 8-stage advanced filtration 8 Stage Tankless Reverse Osmosis System NSF Certifed TDS Reduction 500GPD RO Water Filter System Under Sink Reverse Osmosis Water Filtration System for Home Kitchen Apartment (RMS-WP-RO500) **Brand:** reinmoson **Price:** β‚±16155 **Availability:** ❌ Out of Stock ## Summary > πŸ’§ Drink Smart, Live Pure β€” The Future of Water Filtration is Here! ## Quick Answers - **What is this?** 8 Stage Tankless Reverse Osmosis System NSF Certifed TDS Reduction 500GPD RO Water Filter System Under Sink Reverse Osmosis Water Filtration System for Home Kitchen Apartment (RMS-WP-RO500) by reinmoson - **How much does it cost?** β‚±16155 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/570117167-8-stage-tankless-reverse-osmosis-system-nsf-certifed-tds-reduction) ## Best For - reinmoson enthusiasts ## Why This Product - Trusted reinmoson brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Space-Savvy Design:** Compact under-sink footprint (15.74”L x 5.51”W x 13”H) fits seamlessly in modern kitchens. - β€’ **Eco & Wallet Friendly:** 2.5:1 pure-to-drain ratio saves up to 800% on water billsβ€”ditch bottled water guilt-free. - β€’ **Speed Meets Efficiency:** 500 gallons per day with a lightning-fast 8-second fill for your daily hydration hustle. - β€’ **Certified Clean Confidence:** NSF/ANSI 58 & 42 certified with SGS-verified 99%+ removal of heavy metals and PFAS. - β€’ **Pure Powerhouse Filtration:** 8-stage tankless system slashes 1000+ contaminants for crystal-clear water. ## Overview The RMS-WP-RO500 is an NSF-certified, 8-stage tankless reverse osmosis system delivering up to 500 gallons per day of ultra-purified water. It reduces total dissolved solids from 500 ppm to 25 ppm, removing heavy metals, PFAS, and over 1000 contaminants with a compact design that fits under your sink. Fast installation and filter replacement, combined with a superior 2.5:1 pure-to-drain ratio, make it an eco-friendly, cost-saving upgrade for any modern kitchen. ## Description Immerse in the utmost water purity with our 8 Stages Filtration System, ensuring every drop you consume is clean and healthy. The comprehensive RO filter layers remarkably decrease the TDS levels to below 15 ppm, turning any water from 500 ppm to this low, ensuring it’s excellent for consumption. Certified Efficiency: NSF Certified: Proven to remove up to 91.9% TDS and 96.9% heavy metals. Advanced Filtration: Multiple filters(PC/C/RO) efficiently eliminate various contaminants, improving water taste and ensuring your water is free from harmful substances. Innovative Design for Optimal Convenience: 1. Space-Saving and Tankless: Effortlessly fits under your sink, saving 70% more space. 2. Fast Water Flow: Enjoy a rapid 500 GPD water flow, filling a 200ml cup in just 9 seconds. 3. Smart Features: Real-time TDS and filter life indicators, plus automatic flushing for consistent water purity. Easy Installation and Maintenance: 1. Hassle-Free Setup: Get it up and running in 10 minutes with minimal connections. 2. Effortless Filter Replacement: Change filters in just 3 seconds with no mess or fuss. 3. Leak-Proof Design: Superior integrated molding ensures no leakage and quieter operation. Smart and Safe Operation: Automated Alerts: LED display alerts for filter replacements, ensuring continuous pure water supply. Safety Measures: Automatic shutoff after 3 hours of activation, preventing water wastage and system damage. Economical and Eco-Friendly: Significant Savings: Lower your water bills with a 2.5:1 pure to drain ratio. Long-Lasting Filters: Enjoy extended filter life, 12 months for PC and C, and 24 months for RO, ensuring reliability and less frequent maintenance. Review: This system is the best one for the money! - The Reinmoson RMS-WP-RO500 RO Water filtration system ~ This tankless Reverse Osmosis filtration system is a superior product than most others on desertcart. There are many factors to check out when researching water filtration systems. Among them are: How many stages of filtration (This one has 8 stages), Is it NSF Certifed (Yes!), Does it remove TDS (Yes!), Size of fittings (This one has the bigger 3/8" fittings - which means ZERO reduction in water throughput that the 1/4" fitting will create), How long will the filters last/how many gallons of water do they filter (This unit has 2 that filter 1100 gallons each and 1 that filters 2200 gallons - Compare that to the other brands that only filter 600 gallons!), Yearly cost of filters (I expect around $75.00/Year - FAR LESS than many other systems that have to be replaced twice as often), Warranty period (5 YEARS! - compare that to 1 year warranties for most others), How big is the unit (It fits very well under my counter and is smaller than tank RO systems), Does it have a water storage tank (No!), etc. I could go on but do yourself a favor and compare this one to ALL other systems. Installation was quick and easy (especially due to the 3/8" fittings) and the water tastes clean and free of impurities. All necessary parts were included so all you'll need are your tools and a little time before you will have this system up-and-running quickly. I know this sounds like a commercial - and maybe I should be a company spokesperson & get paid (I am not!) - but this system is really great! I expect great things from it and so far I'm super happy with the product. I think you will be very happy too - especially when it's time to replace the filters half as often!! Review: Easy to install, performs wonderfully. Makes our old system look like an antique. - I had been looking for a system that would be easier to service than the ones I had purchased before. It had to work on well water and wouldn't break the bank. I took a chance on this "Tankless" system and was more than surprised at how easy it was to install and ultimately how well it works. It took less time to install than to remove the old system! Once in, I was actually able to see how it was working via the PPM gauge on the front of the unit. It also tells you when you need to replace an individual filter, (there are three). No more using a stick-meter to test the water. Our pre-filter at the well pump doesn't do that! This system works great on well water. If you have city water, you're going to LOVE how it works on yours! My wife and I live up in the mountains of Colorado on a well. Over the years we have used all kinds of water filtering systems to augment the well pump filter for cooking, drinking and most important, COFFEE. All had the space-eating holding tanks under the counter and all worked adequately. All were similar in that they required messy removal of the old filters from their water-filled, hard to unscrew tubes and periodic sterilization of the osmosis chamber. Servicing the old systems was always a long, involved chore. The new unit comes with easy to follow instructions. The water tube feeds are all color-coded, larger diameter "cut and plug-in" types. Much easier to handle than the old small diameter screw-on attachments that required rummaging through the old toolbox for the right wrench. A few cuts on the new water tubes to fit length needed, push them into the color coded plug-ins, attach the excess water line to the house drain, plug the electric into the wall socket under the sink and DONE! Note: The system comes with a really nice counter-mount faucet in chrome. However, I used our already installed brushed bronze one at the Bosses' direction. (You married guys will know what I mean.) It took me about fifteen minutes to install the new unit. Heck, it took me THIRTY just to remove the old system and take it down to the trash! Now we get clean, great tasting water on demand, no sulfur smell, no leaks, no muss no fuss. The replacement filters snap in and out and have their own sensors to inform me when that is needed. AND those replacement filters are cheaper than any of the old ones we used on the former systems, I checked. To be clear, I NEVER write reviews of things, but this is a break-thru product that WORKS and (IMHO) is several cuts above anything I've bought previously. It saved me time and money. I have neither to spare. I was compelled to share my experience with others about it just in case you're like me and would rather spend the extra time it would have taken to re-install and service an old style system.... FISHING. Mack in the mountains. ## Features - Looking for Filter Replacements: Please replace the PPC/C filter annually and the RO filter every 2 years. You can find the C/PPC/RO filters on desertcart by searching for 'C filter for Reinmoson RMS-WP-RO500,' 'RO filter for Reinmoson RMS-WP-RO500,' and 'PPC filter for Reinmoson RMS-WP-RO500. - 8 Stages Filtration: Tankless ro water filter system has 8 stages filtration to reduce 1000+ contaminants and improve taste of water. The RO filter(3 Stages 0.0001-micron reverse osmosis membrane) + PC(3 Stages)+C(2 Stages) effectively decrease TDS from 500 ppm to 25 ppm and reduce chromium, PFAS, radium, fluoride, arsenic salt, iron, calcium, particles, chloride, chlorine, vinyl chloride, ethylhexyl acrylate, isobutylene, ethylene glycol and radioactive substances in your tap water. - User Friendly: This tankless ro system measures 15.74”L x 5.51”W x 13”H, taking up minimal space under your sink. Additionally, Installation takes only 30 minutes with included 3/8 or 1/2 adapters, and other necessary accessories. Additionally, replacing the filters is a breeze at only 5 seconds. - NSF Certified: Reverse osmosis system under sink is compliant with NSF/ANSI 58 & 42 and EPA 200 standards. Independently tested and certified by SGS, ensuring effective reduction of tap water contaminants. Achieves up to 98.2% TDS removal, 99.4% PFOS removal, and 99.3% reduction in heavy metals. Scan the QR code for the SGS test report. - 500GPD & 2.5:1 Pure to Drain Ratio: Tankless Reverse osmosis system offers faster water flow, filling a 200ml cup of water in just 8s. Besides, 2.5:1 pure to drain ratio allows you to save up to 800% more on water bills compared to other 1:4 reverse osmosis filter with tank. Offering an economical alternative to bottled water and being environmentally friendly (as no tank means no secondary pollution). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C9ZH9FZG | | Best Sellers Rank | #545,778 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #898 in Under-Sink & Countertop Filtration | | Brand | Reinmoson | | Brand Name | Reinmoson | | Capacity | 500 Gallons | | Container Type | Cartridge | | Customer Reviews | 4.1 out of 5 stars 471 Reviews | | Filter Life Cycle | 2 Years | | Included Components | 1 RO System, 3 Filters(RO/PPC/C), All necessary accessories | | Installation Type | Under Sink | | Item Dimensions L x W x H | 15.7"L x 5.5"W x 13"H | | Manufacturer | Reinmoson | | Material | All necessary accessories, C filter: post carbon, Looking for Filter Replacements: Please replace the PPC/C filter annually and the RO filter every 2 years. You can find the C/PPC/RO filters on Amazon by searching for 'C filter for Reinmoson RMS-WP-RO500,' 'RO filter for Reinmoson RMS-WP-RO500,' and 'PPC filter for Reinmoson RMS-WP-RO500., PC filter: granular activated carbon & carbon block & pp cotton & scale resistant filter, RO filter: reverse osmosis membrane Material All necessary accessories, C filter: post carbon, Looking for Filter Replacements: Please replace the PPC/C filter annually and the RO filter every 2 years. You can find the C/PPC/RO filters on Amazon by searching for 'C filter for Reinmoson RMS-WP-RO500,' 'RO filter for Reinmoson RMS-WP-RO500,' and 'PPC filter for Reinmoson RMS-WP-RO500., PC filter: granular activated carbon & carbon block & pp cotton & scale resistant filter, RO filter: reverse osmosis membrane See more | | Material Type | All necessary accessories, C filter: post carbon, Looking for Filter Replacements: Please replace the PPC/C filter annually and the RO filter every 2 years. You can find the C/PPC/RO filters on Amazon by searching for 'C filter for Reinmoson RMS-WP-RO500,' 'RO filter for Reinmoson RMS-WP-RO500,' and 'PPC filter for Reinmoson RMS-WP-RO500., PC filter: granular activated carbon & carbon block & pp c… | | Maximum Flow Rate | 2300 Liters Per Day | | Model Name | RO System: RMS-WP-RO500 RO Filter Replacement: RMS-WP-RO500-RO PC Filter Replacement: RMS-WP-RO500-PC C FilterReplacement: RMS-WP-RO500-C | | Model Number | RMS-WP-RO500 | | Other Special Features of the Product | Looking for Filter Replacements: Please replace the PPC/C filter annually and the RO filter every 2 years. You can find the C/PPC/RO filters on Amazon by searching for 'C filter for Reinmoson RMS-WP-RO500,' 'RO filter for Reinmoson RMS-WP-RO500,' and 'PPC filter for Reinmoson RMS-WP-RO500. | | Part Number | RMS-WP-RO500 | | Power Source | Corded Electric | | Product Dimensions | 15.7"L x 5.5"W x 13"H | | Purification Method | Reverse Osmosis | | Smart Home Compatibility | Not Smart Home Compatible | | Special Feature | Looking for Filter Replacements: Please replace the PPC/C filter annually and the RO filter every 2 years. You can find the C/PPC/RO filters on Amazon by searching for 'C filter for Reinmoson RMS-WP-RO500,' 'RO filter for Reinmoson RMS-WP-RO500,' and 'PPC filter for Reinmoson RMS-WP-RO500. Special Feature Looking for Filter Replacements: Please replace the PPC/C filter annually and the RO filter every 2 years. You can find the C/PPC/RO filters on Amazon by searching for 'C filter for Reinmoson RMS-WP-RO500,' 'RO filter for Reinmoson RMS-WP-RO500,' and 'PPC filter for Reinmoson RMS-WP-RO500. See more | | Supported Water TDS Level Maximum (PPM) | 15 | ## Product Details - **Brand:** Reinmoson - **Special Feature:** Looking for Filter Replacements: Please replace the PPC/C filter annually and the RO filter every 2 years. You can find the C/PPC/RO filters on Amazon by searching for 'C filter for Reinmoson RMS-WP-RO500,' 'RO filter for Reinmoson RMS-WP-RO500,' and 'PPC filter for Reinmoson RMS-WP-RO500. - **Product Dimensions:** 15.7"L x 5.5"W x 13"H - **Package Information:** Cartridge - **Installation Type:** Under Sink - **Power Source:** Corded Electric - **Model Name:** RO System: RMS-WP-RO500 RO Filter Replacement: RMS-WP-RO500-RO PC Filter Replacement: RMS-WP-RO500-PC C FilterReplacement: RMS-WP-RO500-C - **Maximum Flow Rate:** 2300 Liters Per Day - **Manufacturer:** Reinmoson ## Images ![8 Stage Tankless Reverse Osmosis System NSF Certifed TDS Reduction 500GPD RO Water Filter System Under Sink Reverse Osmosis Water Filtration System for Home Kitchen Apartment (RMS-WP-RO500) - Image 1](https://m.media-amazon.com/images/I/616GXDuJ+9L.jpg) ![8 Stage Tankless Reverse Osmosis System NSF Certifed TDS Reduction 500GPD RO Water Filter System Under Sink Reverse Osmosis Water Filtration System for Home Kitchen Apartment (RMS-WP-RO500) - Image 2](https://m.media-amazon.com/images/I/71CHUFNrWmL.jpg) ![8 Stage Tankless Reverse Osmosis System NSF Certifed TDS Reduction 500GPD RO Water Filter System Under Sink Reverse Osmosis Water Filtration System for Home Kitchen Apartment (RMS-WP-RO500) - Image 3](https://m.media-amazon.com/images/I/61KSY44NQJL.jpg) ![8 Stage Tankless Reverse Osmosis System NSF Certifed TDS Reduction 500GPD RO Water Filter System Under Sink Reverse Osmosis Water Filtration System for Home Kitchen Apartment (RMS-WP-RO500) - Image 4](https://m.media-amazon.com/images/I/71uKL+v9DYL.jpg) ![8 Stage Tankless Reverse Osmosis System NSF Certifed TDS Reduction 500GPD RO Water Filter System Under Sink Reverse Osmosis Water Filtration System for Home Kitchen Apartment (RMS-WP-RO500) - Image 5](https://m.media-amazon.com/images/I/61YDnutZ6qL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ This system is the best one for the money! *by V***1 on February 6, 2024* The Reinmoson RMS-WP-RO500 RO Water filtration system ~ This tankless Reverse Osmosis filtration system is a superior product than most others on Amazon. There are many factors to check out when researching water filtration systems. Among them are: How many stages of filtration (This one has 8 stages), Is it NSF Certifed (Yes!), Does it remove TDS (Yes!), Size of fittings (This one has the bigger 3/8" fittings - which means ZERO reduction in water throughput that the 1/4" fitting will create), How long will the filters last/how many gallons of water do they filter (This unit has 2 that filter 1100 gallons each and 1 that filters 2200 gallons - Compare that to the other brands that only filter 600 gallons!), Yearly cost of filters (I expect around $75.00/Year - FAR LESS than many other systems that have to be replaced twice as often), Warranty period (5 YEARS! - compare that to 1 year warranties for most others), How big is the unit (It fits very well under my counter and is smaller than tank RO systems), Does it have a water storage tank (No!), etc. I could go on but do yourself a favor and compare this one to ALL other systems. Installation was quick and easy (especially due to the 3/8" fittings) and the water tastes clean and free of impurities. All necessary parts were included so all you'll need are your tools and a little time before you will have this system up-and-running quickly. I know this sounds like a commercial - and maybe I should be a company spokesperson & get paid (I am not!) - but this system is really great! I expect great things from it and so far I'm super happy with the product. I think you will be very happy too - especially when it's time to replace the filters half as often!! ### ⭐⭐⭐⭐⭐ Easy to install, performs wonderfully. Makes our old system look like an antique. *by K***Y on July 8, 2024* I had been looking for a system that would be easier to service than the ones I had purchased before. It had to work on well water and wouldn't break the bank. I took a chance on this "Tankless" system and was more than surprised at how easy it was to install and ultimately how well it works. It took less time to install than to remove the old system! Once in, I was actually able to see how it was working via the PPM gauge on the front of the unit. It also tells you when you need to replace an individual filter, (there are three). No more using a stick-meter to test the water. Our pre-filter at the well pump doesn't do that! This system works great on well water. If you have city water, you're going to LOVE how it works on yours! My wife and I live up in the mountains of Colorado on a well. Over the years we have used all kinds of water filtering systems to augment the well pump filter for cooking, drinking and most important, COFFEE. All had the space-eating holding tanks under the counter and all worked adequately. All were similar in that they required messy removal of the old filters from their water-filled, hard to unscrew tubes and periodic sterilization of the osmosis chamber. Servicing the old systems was always a long, involved chore. The new unit comes with easy to follow instructions. The water tube feeds are all color-coded, larger diameter "cut and plug-in" types. Much easier to handle than the old small diameter screw-on attachments that required rummaging through the old toolbox for the right wrench. A few cuts on the new water tubes to fit length needed, push them into the color coded plug-ins, attach the excess water line to the house drain, plug the electric into the wall socket under the sink and DONE! Note: The system comes with a really nice counter-mount faucet in chrome. However, I used our already installed brushed bronze one at the Bosses' direction. (You married guys will know what I mean.) It took me about fifteen minutes to install the new unit. Heck, it took me THIRTY just to remove the old system and take it down to the trash! Now we get clean, great tasting water on demand, no sulfur smell, no leaks, no muss no fuss. The replacement filters snap in and out and have their own sensors to inform me when that is needed. AND those replacement filters are cheaper than any of the old ones we used on the former systems, I checked. To be clear, I NEVER write reviews of things, but this is a break-thru product that WORKS and (IMHO) is several cuts above anything I've bought previously. It saved me time and money. I have neither to spare. I was compelled to share my experience with others about it just in case you're like me and would rather spend the extra time it would have taken to re-install and service an old style system.... FISHING. Mack in the mountains. ### ⭐ Worked great for 3 months then pressure just trickled off to nearly nothing... *by R***A on June 8, 2024* So in my area the water is severely hard and full of caliche so filtering the tap water is a necessity if you want to drink it normally or use for cooking. I have a full home R+O system installed and now this and the taste of the water is even better with this set up installed. I am no plumber but this was a super easy set up. I ended up drilling a hole just large enough for the threaded side of the faucet to fit through the left side of my kitchen sink and because my current faucet set up was quick connect/compression i had to use a different set up than the supplied shut off valve. If I had the regular style faucet lines and valves it would have worked great. I already had power in the cabinet due to the disposal so had no issues there. I dont have a static water tester but between the kitchen faucet and this there is definitely a taste difference and a lighter feeling as the tap water feels heavy when drank. Flow is as described and there is no leaks to be found. Fits perfect in my cabinet and has a quality feel. Update: 5 months into this thing and now the water flow through it has turned into a slow trickle at best. Takes about 4 minutes to fill 1 measured cup of water. Water pressure to it measures 72psi, water into the house has a prefilter, RO full home filter and post filter before ever coming into this and still plugged. Now today all 3 filters randomly turned red and system started beeping. Unfortunately there are no real troubleshooting steps in the booklet that comes with it... ## Frequently Bought Together - 8 Stage Tankless Reverse Osmosis System NSF Certifed TDS Reduction 500GPD RO Water Filter System Under Sink Reverse Osmosis Water Filtration System for Home Kitchen Apartment (RMS-WP-RO500) - 2024 All-New 4 in 1 Tds Meter Digital Water Tester - Accurate and Reliable TDS EC & Temp(Β°C,Β°F) Meter - 0-9990ppm - Professional Testing for Drinking Water, RO/DI System, Aquariums etc --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ph/products/570117167-8-stage-tankless-reverse-osmosis-system-nsf-certifed-tds-reduction](https://www.desertcart.ph/products/570117167-8-stage-tankless-reverse-osmosis-system-nsf-certifed-tds-reduction) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-08-17*