--- product_id: 645108205 title: "RESMO Reverse Osmosis System,Tankless Reverse Osmosis Water Filter, 8 Stage RO Water Filtration System, NSF/ANSI FCC Certified,Under Sink RO System, 2:1 Pure to Drain (RS2600)" brand: "resmo" price: "£503.51" currency: GBP in_stock: true reviews_count: 6 category: "Resmo" url: https://www.desertcart.co.uk/products/645108205-resmo-reverse-osmosis-system-tankless-reverse-osmosis-water-filter-8 store_origin: GB region: United Kingdom --- # 800 GPD fast flow 8-stage 0.0001-micron filtration NSF/ANSI & FCC certified RESMO Reverse Osmosis System,Tankless Reverse Osmosis Water Filter, 8 Stage RO Water Filtration System, NSF/ANSI FCC Certified,Under Sink RO System, 2:1 Pure to Drain (RS2600) **Brand:** resmo **Price:** £503.51 **Availability:** ✅ In Stock ## Summary > 💧 Drink Smart, Live Pure — The Future of Water Filtration is Here! ## Quick Answers - **What is this?** RESMO Reverse Osmosis System,Tankless Reverse Osmosis Water Filter, 8 Stage RO Water Filtration System, NSF/ANSI FCC Certified,Under Sink RO System, 2:1 Pure to Drain (RS2600) by resmo - **How much does it cost?** £503.51 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/645108205-resmo-reverse-osmosis-system-tankless-reverse-osmosis-water-filter-8) ## Best For - resmo enthusiasts ## Why This Product - Trusted resmo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pure Powerhouse:** 8-stage filtration slashes contaminants down to 0.0001 microns for water so clean, you’ll taste the difference. - • **Eco-Friendly Flow:** 2:1 pure-to-drain ratio saves up to 70,000 gallons annually—drink pure, waste less, and feel good about it. - • **Smart Safety Alerts:** Real-time LED water quality and filter life indicators keep you effortlessly in control of your hydration. - • **Speed Meets Efficiency:** Delivers 800 gallons per day with a rapid 0.55 gal/min flow—fill your glass in just 5 seconds, no waiting required. - • **Certified Peace of Mind:** NSF/ANSI 372 lead-free and FCC certified for uncompromising safety and quality standards. ## Overview The RESMO RS3800 is a tankless, under-sink reverse osmosis system featuring an advanced 8-stage filtration process with a 0.0001-micron membrane. Certified NSF/ANSI 372 and FCC, it delivers 800 gallons of purified water daily at a fast 0.55 gal/min flow rate. Its dual water outlet design includes real-time water quality and filter life indicators, while an efficient 2:1 pure-to-drain ratio conserves water, saving up to 70,000 gallons annually. Ideal for health-conscious professionals seeking pure, safe, and eco-friendly hydration. ## Description RESMO Reverse Osmosis System,Tankless Reverse Osmosis Water Filter, 8 Stage RO Water Filtration System, NSF/ANSI FCC Certified,Under Sink RO System, 2:1 Pure to Drain (RS2600): desertcart.com: Tools & Home Improvement Review: Unreliable customer service and faulty devices! - Do NOT purchase the RESMO water filter!! The unit has issues with the low water sensor and gives out after a few months. I have been trying to get technical support and the companies selling this product have no clue how the units function and offer no help in troubleshooting more complex issues, nor do they offer a solution to resolve the issue. Update - after many messages over a couple of months customer service offered to replace the unit. The new unit arrived and is working without issue. There was clearly an issue with the low pressure water sensor on the pure water side. I changed the rating from one star to three. Review: Excellent RESMO RO System With Good Look - The package comes with a detailed installation manual, which helped me install it smoothly. It took me half an hour to install it, which is better than the old water purification system. The filtered water tastes great and flows quickly, making it more convenient to drink water in summer. The noise emitted by RS600 during operation is much smaller than I thought, and it doesn't take up much space. Anyway, I really like it! Value for money!! Worth buying!! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CXSGMQBR | | Best Sellers Rank | #1,112,734 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,706 in Under-Sink & Countertop Filtration | | Brand Name | RESMO | | Capacity | 800 Gallons | | Customer Reviews | 3.1 3.1 out of 5 stars (14) | | Item Dimensions L x W x H | 17.13"L x 5.6"W x 15"H | | Item Weight | 20.1 Pounds | | Manufacturer | RESMO | | Maximum Flow Rate | 0.55 Gallons Per Minute | | Model Number | RS2600 | | UPC | 742420763935 | ## Product Details - **Brand:** RESMO - **Capacity:** 800 Gallons - **Item Weight:** 20.1 Pounds - **Manufacturer:** RESMO - **Maximum Flow Rate:** 0.55 Gallons Per Minute - **Product Dimensions:** 17.13"L x 5.6"W x 15"H - **UPC:** 742420763935 ## Images ![RESMO Reverse Osmosis System,Tankless Reverse Osmosis Water Filter, 8 Stage RO Water Filtration System, NSF/ANSI FCC Certified,Under Sink RO System, 2:1 Pure to Drain (RS2600) - Image 1](https://m.media-amazon.com/images/I/61VrGFC7UbL.jpg) ![RESMO Reverse Osmosis System,Tankless Reverse Osmosis Water Filter, 8 Stage RO Water Filtration System, NSF/ANSI FCC Certified,Under Sink RO System, 2:1 Pure to Drain (RS2600) - Image 2](https://m.media-amazon.com/images/I/712VUirnhgL.jpg) ![RESMO Reverse Osmosis System,Tankless Reverse Osmosis Water Filter, 8 Stage RO Water Filtration System, NSF/ANSI FCC Certified,Under Sink RO System, 2:1 Pure to Drain (RS2600) - Image 3](https://m.media-amazon.com/images/I/71DLIMEeu7L.jpg) ![RESMO Reverse Osmosis System,Tankless Reverse Osmosis Water Filter, 8 Stage RO Water Filtration System, NSF/ANSI FCC Certified,Under Sink RO System, 2:1 Pure to Drain (RS2600) - Image 4](https://m.media-amazon.com/images/I/71w+dx8oTlL.jpg) ![RESMO Reverse Osmosis System,Tankless Reverse Osmosis Water Filter, 8 Stage RO Water Filtration System, NSF/ANSI FCC Certified,Under Sink RO System, 2:1 Pure to Drain (RS2600) - Image 5](https://m.media-amazon.com/images/I/71VERewfZeL.jpg) ## Customer Reviews ### ⭐⭐⭐ Unreliable customer service and faulty devices! *by D***K on January 9, 2026* Do NOT purchase the RESMO water filter!! The unit has issues with the low water sensor and gives out after a few months. I have been trying to get technical support and the companies selling this product have no clue how the units function and offer no help in troubleshooting more complex issues, nor do they offer a solution to resolve the issue. Update - after many messages over a couple of months customer service offered to replace the unit. The new unit arrived and is working without issue. There was clearly an issue with the low pressure water sensor on the pure water side. I changed the rating from one star to three. ### ⭐⭐⭐⭐⭐ Excellent RESMO RO System With Good Look *by H***G on July 5, 2024* The package comes with a detailed installation manual, which helped me install it smoothly. It took me half an hour to install it, which is better than the old water purification system. The filtered water tastes great and flows quickly, making it more convenient to drink water in summer. The noise emitted by RS600 during operation is much smaller than I thought, and it doesn't take up much space. Anyway, I really like it! Value for money!! Worth buying!! ### ⭐ Doesn’t work! *by A***A on December 7, 2024* Appears to be great unit but keeps on needing to be reset. Amazon sent replacement unit and does same thing! No way to speak to manufacturer directly for troubleshooting? ## Frequently Bought Together - RESMO Reverse Osmosis System,Tankless Reverse Osmosis Water Filter, 8 Stage RO Water Filtration System, NSF/ANSI FCC Certified,Under Sink RO System, 2:1 Pure to Drain (RS2600) - Malida 1/4 inch O.D. Length 32.8ft(10 meters) RO Water Tubing, Hose Pipe for RO Water purifiers System,+ 1/4 O.D quick connector 10pcs - E-outstanding Quick Straight Connector 5PCS 1/4inch to 3/8inch OD Quick Straight Push Connector Water Tube Pipe Fitting Kit for RO Water Systems Purifiers Filters --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/645108205-resmo-reverse-osmosis-system-tankless-reverse-osmosis-water-filter-8](https://www.desertcart.co.uk/products/645108205-resmo-reverse-osmosis-system-tankless-reverse-osmosis-water-filter-8) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-29*