--- product_id: 376601385 title: "PUR® 4-Stage Under Sink Universal Reverse Osmosis Water Filtration System" brand: "pur" price: "1612.52 DT" currency: TND in_stock: true reviews_count: 5 url: https://www.desertcart.tn/products/376601385-pur-4-stage-under-sink-universal-reverse-osmosis-water-filtration store_origin: TN region: Tunisia --- # 23.3 GPD ultra-pure flow 4-stage multi-contaminant defense NSF/ANSI 58 certified safety PUR® 4-Stage Under Sink Universal Reverse Osmosis Water Filtration System **Brand:** pur **Price:** 1612.52 DT **Availability:** ✅ In Stock ## Summary > 💧 Drink Pure, Live Elevated — Because Your Water Should Work as Hard as You Do ## Quick Answers - **What is this?** PUR® 4-Stage Under Sink Universal Reverse Osmosis Water Filtration System by pur - **How much does it cost?** 1612.52 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/376601385-pur-4-stage-under-sink-universal-reverse-osmosis-water-filtration) ## Best For - pur enthusiasts ## Why This Product - Trusted pur brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ready-to-Flow:** Includes dedicated air gap faucet and pressurized 23.3 GPD storage tank for instant, refreshing water. - • **Pure Powerhouse:** Advanced 4-stage filtration slashes lead, cysts, heavy metals & TDS for crystal-clear hydration. - • **Space-Smart Setup:** Bracket-mounted design maximizes under-sink space—sleek, efficient, and out of sight. - • **Certified Confidence:** NSF/ANSI 58 & CSA B483.1 certifications guarantee industry-leading water safety standards. - • **Complete Kit Convenience:** All-in-one package with sediment, carbon block, RO membrane, GAC filter, tubing & installation gear. ## Overview The PUR 4-Stage Under Sink Universal Reverse Osmosis System delivers up to 23.3 gallons per day of NSF/ANSI 58 and CSA B483.1 certified purified water. Featuring a space-saving bracket-mounted design, it includes a dedicated air gap faucet, sediment, carbon block, RO membrane, and GAC polishing filters, plus a pressurized storage tank and all installation components for seamless setup. Ideal for professionals demanding clean, contaminant-free hydration straight from their tap. ## Description Delight in cleaner, refreshing water with the PUR® 4-Stage Quick-Connect Reverse Osmosis (RO) Water Filtration System. This 4-stage under sink RO water filter system delivers more purified water through a secondary air gap faucet. Forget bottled water and opt for an environmentally sound water filtration system that is NSF certified to reduce at least 15 unwanted contaminants including lead, cysts, TDS and heavy metals. During stage 1, the 5 micron sediment filter reduces rust, sand and dirt. In stage 2, water flows through a 5 micron carbon block filter to further reduce particulates, as well as chlorine. In stage 3, the RO membrane further filters the water to less than 0.0001 micron, thereby reducing chemical contaminants and improving the safety of your drinking water. During the final 4th stage, a secondary carbon block filter removes any residual taste that may come from the storage tank. The no hassle quick-connect design makes replacing the filters easy with a simple flip of a switch and twist of the wrist. For optimum water filtration system maintenance, replace the sediment and carbon block filters every six months and the RO membrane every two years. This water filtration system features a compact, space-saving design that includes everything you need to get started with the for quick and easy installation. ## Features - Enjoy cleaner, refreshing and safer drinking water straight from a dedicated air gap faucet with the PUR 4-Stage Under Sink Universal Reverse Osmosis (RO) Water Filtration System - NSF/ANSI Standard 58 and CSA B483.1 certified to reduce multiple contaminants including lead, cysts, TDS and heavy metals - Water Filter System includes air gap faucet, 1 sediment filter, 1 carbon block filter, RO membrane, GAC polishing filter, pressurized storage tank, tubing and installation components - Bracket-mounted design saves space under your counter or sink - Water Filtration System tested and certified to 23.3 gpd of filtered water ## Product Details - **Brand:** PUR - **Special Feature:** NSF certified, Chlorine Reduction - **Package Information:** Tube - **Installation Type:** Under Sink - **Model Name:** PUN4RO - **UPC:** 872076042211 - **Manufacturer:** GHP Group Inc ## Images ![PUR® 4-Stage Under Sink Universal Reverse Osmosis Water Filtration System - Image 1](https://m.media-amazon.com/images/I/71UdwL3qxrL.jpg) ![PUR® 4-Stage Under Sink Universal Reverse Osmosis Water Filtration System - Image 2](https://m.media-amazon.com/images/I/81MNUF87E3L.jpg) ![PUR® 4-Stage Under Sink Universal Reverse Osmosis Water Filtration System - Image 3](https://m.media-amazon.com/images/I/81ZgUsB9vKL.jpg) ![PUR® 4-Stage Under Sink Universal Reverse Osmosis Water Filtration System - Image 4](https://m.media-amazon.com/images/I/81HQFAB3rVL.jpg) ![PUR® 4-Stage Under Sink Universal Reverse Osmosis Water Filtration System - Image 5](https://m.media-amazon.com/images/I/81fBVwVOdtL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Replaced an old R/O system with this one *by B***A on March 7, 2025* I needed to replace our R/O system at my place of business. Our municipal water is VERY hard, I don't dare drink it. I had hoped that it would be plug & play changing from the old system to the new one. Unfortunately, it was not as easy but not horrible. Overall instructions were clear. We had to drill a new hole in a stainless steel sink for spigot. The old one had a smaller hole. We went through 2 circular drills but got it done. We had to drill a bigger hose for the drain. The tank is smaller than my old tank. But was able to fill up a 3 quart container at one time. Which I had not been able to do with the old system for 2 yrs or more. The old system has the filters changed regularly but the bladder on the tank was bad. I could not get the cover off to change the membrane. While it took me a while to get to where my husband & I would install the new system. In the end it was worth it. ### ⭐⭐⭐⭐⭐ Look no Further. *by F***N on March 29, 2025* Im very impressed....The best installation manual I have ever seen. Everthing is color coded, hoses, and connections as well. The rest of the manual covers everything , and I do mean everything. You could be a nun and install it (: The quality of everything is A 1. Imhave always had RO units in my homes. I also worked and built large scale RO commercial units. So take it from me look no further.And no this is not A.I Generated.Best Of Luck ### ⭐ Wasteful *by A***E on January 12, 2025* I decided to go under sink water filtration after getting tired of lugging 5 gallon water bottles to and from. The filter works as advertised and the water tastes great. However I am disappointed greatly in the efficiency of this filter system. Most filter system have a pure water: to drain ratio but this system's ratio is garbage. For every gallon of drinking water this sytem is going to send close to 3 down the drain. The pic shows a coffee pot and the amount of waste created filling it up. Unacceptable. ## Frequently Bought Together - PUR® 4-Stage Under Sink Universal Reverse Osmosis Water Filtration System - Lemoy Equal Straight OD Tube Ball Valve Quick Connect Fitting 1/4-Inch by 1/4-Inch OD Valve Start RO Water System (Pack 10) --- ## 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.tn/products/376601385-pur-4-stage-under-sink-universal-reverse-osmosis-water-filtration](https://www.desertcart.tn/products/376601385-pur-4-stage-under-sink-universal-reverse-osmosis-water-filtration) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-22*