--- product_id: 3678632 title: "ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE" brand: "watts premier" price: "KD 30.44" currency: KWD in_stock: true reviews_count: 13 category: "Watts Premier" url: https://www.desertcart.com.kw/products/3678632-original-watts-premier-105331-ro-pure-ro-4-membrane store_origin: KW region: Kuwait --- # Push-button quick replacement 5-micron precision filtration Durable high-quality activated carbon ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE **Brand:** watts premier **Price:** KD 30.44 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your water game with effortless purity and taste! ## Quick Answers - **What is this?** ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE by watts premier - **How much does it cost?** KD 30.44 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/3678632-original-watts-premier-105331-ro-pure-ro-4-membrane) ## Best For - watts premier enthusiasts ## Why This Product - Trusted watts premier brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Crafted from premium activated carbon for durable, long-lasting performance—replace annually or every 600 gallons. - • **Taste the Difference:** Final polishing filter reduces chlorine taste and odors, elevating every sip. - • **Effortless Maintenance:** Innovative push-button design lets you swap filters without shutting off your water supply or tools. - • **Crystal-Clear Hydration:** Filters particles down to an ultra-fine 5 microns for pristine water clarity. - • **Trusted Industry Leader:** Backed by Watts Premier’s decades of filtration expertise and WQA certification for peace of mind. ## Overview The Watts Premier 5-Micron Activated Carbon Post-Filter is a high-performance final polishing filter designed for select Watts Premier RO systems. It removes chlorine taste and odors by filtering particles as small as 5 microns, enhancing water flavor. Featuring a user-friendly push-button release, it enables quick, tool-free replacement without shutting off water. Built with durable activated carbon, it is recommended for annual replacement or after 600 gallons, ensuring consistent premium water quality backed by Watts Premier’s trusted filtration legacy. ## Description Product Description The Watts Premier RO Pure 50 GPD Membrane is an essential component designed specifically for under sink RO Pure (WP531411, WP531407) and Zero/Pure Plus systems (WP531517, WP531417), providing effective filtration for your reverse osmosis system. This package includes one 50 GPD (gallons per day) Membrane (WP105331), which is proficient in significantly reducing total dissolved solids (TDS) and various impurities, effectively removing 99.95% of cysts like, safeguarding your drinking water from common harmful waterborne chemicals.Tested to meet the NSF/ANSI 42 standard for chlorine reduction, this membrane ensures your water not only tastes better but is also free from unpleasant odors associated with chlorine. The 11-inch filter is easily identifiable by its green label and cap, distinguishing it from other filters in the Watts Premier RO system range, thus simplifying maintenance and replacement processes.A standout feature of this membrane is its push-button release mechanism, allowing for hassle-free replacement without the need to shut off the water source. This design innovation ensures that changing the filter is quick and straightforward, requiring no special tools. Simply press the button to release the old membrane and insert the new one.Constructed from high-quality materials, the Watts Premier RO Pure 50 GPD Membrane guarantees long-lasting durability. Filter life may vary based upon local water conditions or use patterns, but we recommend replacing the membrane filter every 2 to 5 years.Please note this kit will NOT fit the Watts 1/4 Turn Kwik-Change RO System. From the Manufacturer This 50-Gallon per day semi permeable membrane will effectively reduce TDS (total dissolved solids), Sodium and a wide range of contaminants such as Lead, Arsenic, Perchlorate, Chromium, Copper and Radium. It will also remove over 99.95-Percent cysts such as Giardia and Cryptosporidium. Review: LOVE WATER TASTE IN GLASS & VALUE! - Lowest price on the market right now! Lower than buying direct from manufacturer which is how I’ve always bought them in the past. I took the time to shop pricing online this time around & pleasantly surprised finding desertcart carrying at lowest price! Fast delivery!! I didn’t have to wait 2+ weeks to receive like when I order from Manufacturer! I love RO water & I drink A LOT of water! I drink 3Liters of water a day or 2 of the largest water bottles sold by Aquafina, as an example. I love drinking water & have used reverse osmosis water systems since 2005 if not longer! I’ve installed RO water filtration systems in every home I’ve owned!! Can’t live without it at this point! The complete water systems are sold direct from Watts or I have bought from Costco in the past & now desertcart carries the entire system also!!! S Orange County has extremely hard water!!!! The city where we live provides the worst water in OC, making RO water systems a MUST! Not to mention, it tastes AMAZING! From some reason, RO water tastes amazing in a glass vs a plastics water bottle. No impurities in water drinking from a glass. For people who don’t think they like water, need to try this system in their house! It’s easy to install for anyone with basic plumbing experience! Not to mention HEALTH BENEFITS of RO water filtering out all impurities! I use for everything from drinking water to cooking & even plant watering! VALUE IS AMAZING when considering the cost of buying bottled water vs filling up a container at your home that often tastes better than store bought bottled water. I’M NOW A WATER SNOB! HIGHLY RECOMMENDED! TASTE VALUE LOWER THAN DIRECT FROM MANUF! HEALTH BENEFITS SUPER EASY TO INSTALL! FAST DELIVERY! Review: 👍 - Great product. Good $ ## Features - MEMBRANE FILTER REPLACEMENT: Designed for your under sink RO Pure (WP531411, WP531407) or Zero/Pure Plus (WP531517, WP531417), the Watts Premier RO Pure 50 GPD Membrane is the work horse filter of your reverse osmosis system. Please note this product will not fit the Watts 1/4 Turn Kwik-Change RO System. - HIGHLY EFFECTIVE FILTRATION: Includes one 50 GDP Membrane (WP105331) for effectively reducing TDS and a wide range of impurities, including s 99.95% of cysts. It has also been tested against standard NSF/ANSI 42 for chlorine reduction. - SMART DESIGN: This 11-inch filter has a green label and cap to help differentiate it from other filters in the Watts Premier RO system family of filters. It also features a push button release that allows for hassle-free replacement without shutting off the water source. Easily change out with a quick push of a button - no special tools required! - QUALITY CONSTRUCTION: This durable filter is crafted from high-quality materials for maximum filtration. Filter life may vary based upon local water conditions or use patterns, but we recommend replacing the membrane filter every 2 to 5 years. - THE PREMIER DIFFERENCE: Since our founding in 1989, Premier has been dedicated to the design, development, and marketing of high-quality water filtration systems that exceed industry standards. Following our Watts Water Technologies in 2001, our audience and influence have only expanded, solidifying Watts Premier as a trusted leader in the industry. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004OZRIOI | | Best Sellers Rank | #5,723 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #106 in Undersink Water Filtration Replacement Parts | | Brand | Watts Premier | | Brand Name | Watts Premier | | Customer Reviews | 4.7 out of 5 stars 2,955 Reviews | | EU Spare Part Availability Duration | 2 Years | | External Testing Certification | ANSI, NSF | | Global Trade Identification Number | 00783583786386 | | Included Components | Membrane | | Item Dimensions D x W x H | 3"D x 11"W x 3"H | | Item Type Name | Reverse Osmosis Filtration System Water Filter Replacement Cartridge | | Manufacturer | Watts | | Manufacturer Part Number | 105331-G | | Material | Carbon Fiber | | Material Type | Carbon Fiber | | Model Number | WP105331 | | Number of Items | 1 | | Product Benefits | Reduces odor and harmful chemicals in water by up to 99.8% | | Product Dimensions | 3"D x 11"W x 3"H | | Set Name | Membrane Only (2-5 yr replacement) | | UPC | 783583786386 791769420566 099351153312 | | Unit Count | 1.0 Count | ## Product Details - **External Testing Certification:** WQA - **Item Weight:** 286 Grams - **Material:** Carbon - **Product Benefits:** Improves water taste and odor by reducing chlorine filtering down to 5 microns - **Product Dimensions:** 4"D x 4"W x 12"H ## Images ![ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE - Image 1](https://m.media-amazon.com/images/I/51Pg4Sm65iL.jpg) ![ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE - Image 2](https://m.media-amazon.com/images/I/61wzIro3DSL.jpg) ![ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE - Image 3](https://m.media-amazon.com/images/I/51LYCp3anBL.jpg) ![ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE - Image 4](https://m.media-amazon.com/images/I/41gCVA+76aL.jpg) ![ORIGINAL Watts Premier (105331) RO PURE (RO-4) MEMBRANE - Image 5](https://m.media-amazon.com/images/I/61BQGq0NB3L.jpg) ## Available Options This product comes in different **Size, Set** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ LOVE WATER TASTE IN GLASS & VALUE! *by A***G on September 24, 2021* Lowest price on the market right now! Lower than buying direct from manufacturer which is how I’ve always bought them in the past. I took the time to shop pricing online this time around & pleasantly surprised finding Amazon carrying at lowest price! Fast delivery!! I didn’t have to wait 2+ weeks to receive like when I order from Manufacturer! I love RO water & I drink A LOT of water! I drink 3Liters of water a day or 2 of the largest water bottles sold by Aquafina, as an example. I love drinking water & have used reverse osmosis water systems since 2005 if not longer! I’ve installed RO water filtration systems in every home I’ve owned!! Can’t live without it at this point! The complete water systems are sold direct from Watts or I have bought from Costco in the past & now Amazon carries the entire system also!!! S Orange County has extremely hard water!!!! The city where we live provides the worst water in OC, making RO water systems a MUST! Not to mention, it tastes AMAZING! From some reason, RO water tastes amazing in a glass vs a plastics water bottle. No impurities in water drinking from a glass. For people who don’t think they like water, need to try this system in their house! It’s easy to install for anyone with basic plumbing experience! Not to mention HEALTH BENEFITS of RO water filtering out all impurities! I use for everything from drinking water to cooking & even plant watering! VALUE IS AMAZING when considering the cost of buying bottled water vs filling up a container at your home that often tastes better than store bought bottled water. I’M NOW A WATER SNOB! HIGHLY RECOMMENDED! TASTE VALUE LOWER THAN DIRECT FROM MANUF! HEALTH BENEFITS SUPER EASY TO INSTALL! FAST DELIVERY! ### ⭐⭐⭐⭐⭐ 👍 *by G***E on December 8, 2025* Great product. Good $ ### ⭐⭐⭐⭐⭐ We are very serious about the quality of our water! *by L***K on May 25, 2013* We are such maniacs about cleaning up the city water that we have depended upon the Watts Reverse Osmosis system for years. How do we know it works? We also have a distiller, so we distilled a gallon of municipal city water and the residue at the bottom of the carafe looked like brown coffee and smelled metalic. For fun, I distilled a couple of more gallons and gathered the residue in a jar to show the neighbors what they were drinking if they drank three gallons of city water. I resisted the temptation to take it to city hall to share what I had collected and ask if anyone would like to have a nice drink of what the public was exposed to daily. After I cleaned the carafe, we then distilled the reverse osmosis water. The carafe did not need cleaning at the bottem and it took about 10 gallons of water to see a tiny bit of white dust in the bottom of the carate. There was not any metalic odor. This filter snaps into place for easy installation and I can maintain the system on time. We use the reverse osmosis water for clean ice in our whirlpool refrigerator, so clean water is important. Your coffee tastes better too. I hope sharing our experiment will help you decide to use the Watts system. Watts is an American Manufacturer and these filters are made right here in America by Americans. After Hurricane Wilma the officials finally announced that the city water was "Now safe to drink". That was 2005 and we are still laughing. Even if the water is pure when it leaves the plant, think about the old pipes it travels through for miles on end. If you are still unconvinced, get a distiller and see what unfiltered water leaves behind in residue. We have trusted Watts products for many years. By the way, the filtration system does not use electricity, so if the water plant is running after a hurricane your house will have filtered water even if the electricity is out. Consequently, your watts reverse osmosis will continue to clean your water for consumption during an emergency, which in incredibly important for your health at such a stressful time. We give Watts a five! --- ## 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.com.kw/products/3678632-original-watts-premier-105331-ro-pure-ro-4-membrane](https://www.desertcart.com.kw/products/3678632-original-watts-premier-105331-ro-pure-ro-4-membrane) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-13*