--- product_id: 186533962 title: "Reverse Osmosis RO Membrane 75 GPD -NSF Certificated-Water Filter Replacement-Pack 2 | RO Water Filter Replacement Cartridge-11. 75\" x 1. 75\"" brand: "geekpure" price: "HK$489" currency: HKD in_stock: true reviews_count: 13 url: https://www.desertcart.hk/products/186533962-reverse-osmosis-ro-membrane-75-gpd-nsf-certificated-water-filter store_origin: HK region: Hong Kong --- # 75 GPD high flow rate Fits standard 11.75" x 1.75" housings NSF/ANSI Standard 58 certified Reverse Osmosis RO Membrane 75 GPD -NSF Certificated-Water Filter Replacement-Pack 2 | RO Water Filter Replacement Cartridge-11. 75" x 1. 75" **Brand:** geekpure **Price:** HK$489 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your hydration game with certified purity and effortless fit! ## Quick Answers - **What is this?** Reverse Osmosis RO Membrane 75 GPD -NSF Certificated-Water Filter Replacement-Pack 2 | RO Water Filter Replacement Cartridge-11. 75" x 1. 75" by geekpure - **How much does it cost?** HK$489 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/186533962-reverse-osmosis-ro-membrane-75-gpd-nsf-certificated-water-filter) ## Best For - geekpure enthusiasts ## Why This Product - Trusted geekpure brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Long-Lasting Freshness:** Up to 24 months or 35,000 gallons of premium water before replacement needed - • **Certified Safety, Guaranteed:** NSF/ANSI Standard 58 certification ensures trusted, food-grade BPA-free materials - • **Pure Performance, Every Drop:** Removes 1000+ contaminants including lead, arsenic & fluoride for crystal-clear water - • **Easy Install, Instant Refresh:** User-friendly design with quick installation—flush and enjoy pure water fast - • **Universal Fit, Hassle-Free Upgrade:** Standard 11.75" x 1.75" size fits most residential RO systems seamlessly ## Overview The Geekpure Reverse Osmosis RO Membrane delivers a robust 75 gallons per day flow rate, certified by NSF/ANSI Standard 58 for removing over 1000 contaminants including heavy metals and fluoride. Designed with BPA-free, food-grade polyamide film, this 2-pack fits standard 11.75" x 1.75" RO housings, offering up to 24 months of reliable, high-quality water filtration for residential use. ## Description More valuable information: Question: What is dimension of the Ro membrane? Answer: It is standard size ( Membrane Dimensions: 11. 75" Overall Length, 1. 75" Diameter), and Fits all Standard 2" ID Membrane Housings. Question:What is the life time? Answer:Our suggestion is 24 months for most tap water (200-500 ppm).usually, you replace membrane depends on usage amount and feed water quality. if tap water is very good quality (200 ppm or less), you may replace the membrane per 36 months. if hard water area, someone replace membrane 6 months or 12 months. it is time to replace new one if flow rate is too less or membrane is cloged. Question:Could i use it if my water Total Dissolved Solids is over 1000 ppm or very hard well water? Answer: Yes, you can use it. even TDS reach 2000 ppm. but you should replace membrane every 12 months or more frequently .less 1000 ppm is our suggestion. Question:Can this be used for brackish water(5000 ppm) or ocean water with high salinity(35000 ppm)? Answer:No. it is just designed for residential tap water use. if you need Ro membrane for brackish water or ocean water and industrial use, Geekpure can provide too, please send email to us. Question:What is in the box? Answer: Just 2 x 75 GPD RO membrane. if you need membrane housing, wrench and flow restrictor ,please buy it separated. Different temperature,different water pressure and feed water quality, the product water capacity and pure water quality is different. That is reason we feel low pure water capacity in the winter, but higher in the summer. Lab test condition : feed water pressure: 70 psi. work temperature: 77 F or 25 C. Nacl concentration: 250 ppm. recovery: 15%. ## Features - High Efficient-75 GPD Ro membrane,Rejects impurities down to 0.0001 micron,Removes Heavy Metal,Arsenic,Lead,Mercury,Fluoride and more 1000+ contaminants from source water - High Quality - NSF/ANSI Standard 58 certificated.food grade Polyamide film composite material,BPA free - Universal Compatible-Standard size ( Membrane Dimensions: 11. 75" x 1. 75" ), Fits 1812/2012 residential RO membrane housings (2” Inner Diameter ) - Life Span-It depends on usage amount and feed water quality. Usually,24 months or 35,000 Gallons pure water for most tap water (200-500 ppm) - Friendly Design, Easy installation. It is suitable for most Reverse Osmosis Water Filtration System.Please note to flush new membrane 30 minutes - Pack of 2 membranes in the box - Flow rate:75 gallons per day @ 60 psi.The Ratio of pure water and waste water is 1:2.Feed Water Condition:Water Pressure: 35 - 100 psi,Temperate:40-110°F/5-45°C,Ph:3.0 -11.0,Max TDS :1000 ppm tap water or well water - DO NOT FREEZE ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07GZK3BZ9 | | Best Sellers Rank | #73,509 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #474 in Replacement Under-Sink Water Filters | | Brand Name | Geekpure | | Customer Reviews | 4.6 4.6 out of 5 stars (908) 4.6 out of 5 stars | | External Testing Certification | NSF | | Included Components | no more parts,just 2 pieces 75 GPD reverse osmosis membrane | | Item Dimensions D X W X H | 1.75"D x 1.75"W x 11.75"H | | Item Weight | 220 g | | Manufacturer | HIDROTEK | | Manufacturer Part Number | GP-TW-1812-75G | | Manufacturer Warranty Description | 1 year limited warranty | | Material Type | BPA free, Food grade materials | | Model Number | GP-TW-1812-75G | | Number Of Items | 2 | | Product Benefits | NSF certificated membrane,it removes 1, 000+ harmful contaminants like arsenic, nitrates, fluoride, lead (removes up to 98%) | | Set Name | 2-Pack | | Unit Count | 2 Count | | Upc | 610895384675 | ## Product Details - **External Testing Certification:** NSF - **Item Weight:** 220 Grams - **Material:** BPA free, Food grade materials - **Product Dimensions:** 1.75"D x 1.75"W x 11.75"H ## Images ![Reverse Osmosis RO Membrane 75 GPD -NSF Certificated-Water Filter Replacement-Pack 2 | RO Water Filter Replacement Cartridge-11. 75" x 1. 75" - Image 1](https://m.media-amazon.com/images/I/61l7GmXET0L.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Have bought stage 4 witch filter does the membrane replace ?** A: If 5 stage Ro system, Membrane is the 4th stage.each membrane could use 2 years if normal quality tap water.If you need further support,please get in touch with us by mail. general@geekpure.cc **Q: Funciona para el filtro Puré Blue H20 stage 3** A: Gracias por su atención. Comprobé este sistema en Amazon, su membrana no es estándar, compra por favor la membrana del reemplazo del vendedor original. Si usted tiene interesante a nuestro sistema, recepción para comprobar. ASIN: B0741599C o B074WT2W97 **Q: Does this have a check valve in it? Similar to the Watts yellow membrane.** A: Not yet. just 1 piece reverse osmosis membrane. if you have a reverse osmosis system and it work well, you don't need to buy a new check valve. old one is useable. **Q: will it replace filter whed20?** A: sorry,it can not replace filter whed20. we provide Reverse Osmosis system which is similar with Whirlpool's,but price is much cheaper, the ASIN: B074WT2W97, it is pormotion time now. the replacement catridges is very good price too. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works extremely well *by on Reviewed in the United States March 9, 2026* I use single-unit RO filtration for the water I use in the ultrasonic humidifiers we run in the winter. I have the canister connected to a water line at the basement utility sink and use it to fill 1-gallon water jugs. It eliminates the need for frequent humidifier cleaning and removes the white mineral dust produced by straight tap water. The RO filtered water also allowed an older media-type humidifier to work all season without having to replace the media material. The RO filter cartridge will last all winter, providing approximately 750 gallons of water per season. ### ⭐⭐⭐⭐⭐ RO SYSTEM *by on Reviewed in the United States July 2, 2025* Works great filter ### ⭐⭐⭐⭐⭐ on time best price *by on Reviewed in the United States March 27, 2026* as described best price ## Frequently Bought Together - Geekpure Reverse Osmosis RO Membrane 75 GPD -NSF Certificated-Water Filter Replacement-Pack 2 - iSpring FT15 5th Stage Inline Post Carbon Water Filter, Replacement Cartridge with 1/4" Quick Connect for Refrigerator, Ice Maker, RO Reverse Osmosis Water Filtration System(1 Pack) - iSpring F7-GAC for Standard 5-Stage Reverse Osmosis RO Systems 1-Year Replacement Supply Filter Cartridge Pack Set, 7 Count --- ## 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.hk/products/186533962-reverse-osmosis-ro-membrane-75-gpd-nsf-certificated-water-filter](https://www.desertcart.hk/products/186533962-reverse-osmosis-ro-membrane-75-gpd-nsf-certificated-water-filter) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-08-24*