--- product_id: 17413330 title: "TW30-1812-50 Reverse Osmosis Membrane , Blue" brand: "dow filmtec" price: "Rp1970325" currency: IDR in_stock: true category: "Dow Filmtec" url: https://www.desertcart.id/products/17413330-tw30-1812-50-reverse-osmosis-membrane-blue store_origin: ID region: Indonesia --- # 50 GPD Purification Fits Standard 2" ID Housings 98% Salt Rejection TW30-1812-50 Reverse Osmosis Membrane , Blue **Brand:** dow filmtec **Price:** Rp1970325 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your water game with the membrane pros trust! ## Quick Answers - **What is this?** TW30-1812-50 Reverse Osmosis Membrane , Blue by dow filmtec - **How much does it cost?** Rp1970325 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/17413330-tw30-1812-50-reverse-osmosis-membrane-blue) ## Best For - dow filmtec enthusiasts ## Why This Product - Trusted dow filmtec brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Consistent 50 Gallons Per Day:** Reliable daily water output for your home hydration needs - • **NSF/ANSI Standard 58 Certified:** Certified safety and performance you can trust - • **Compact Fit for Standard Housings:** Seamlessly integrates with existing 1.8" x 12" RO systems - • **Industry-Leading 98% Salt Rejection:** Ensures ultra-pure water by removing nearly all dissolved salts - • **Advanced Thin-Film Composite Technology:** Durable membrane engineered for long-lasting, high-efficiency filtration ## Overview The Dow Filmtec TW30-1812-50 is a premium reverse osmosis membrane designed for residential water purification. Delivering up to 50 gallons per day with 98% stabilized salt rejection, it fits standard 2" ID housings and meets NSF/ANSI Standard 58 certification, ensuring reliable, high-quality drinking water with advanced thin-film composite technology. ## Description Product Description Dow Filmtec TW30-1812-50 RO Reverse Osmosis Membrane This membrane is rated at 50 Gallons per Day. If you have chlorinated water, we recommend you use a Carbon/Sediment Pre Filter. The residual chlorine in municipal or city water will destroy the Thin Film Composite (TFC) membrane. Dow Filmtec TW30-1812-50 Reverse Osmosis Membrane elements are for home drinking water. The industry's most reliable advanced membrane technology and automated fabrication, allow these elements to deliver consistent performance that equipment suppliers, water treatment dealers and residential customers can rely on. This membrane fits in standard 1.8" x 12" residential RO membrane housings. The industry's most reliable for home drinking water is the Filmtec reverse osmosis membrane elements. Advanced membrane technology and automated fabrication in the Filmtec reverse osmosis membrane allow these elements to deliver consistent performance for all customers. Filmtec reverse osmosis membrane TW30-1812-50 element is NSF/ANSI Standard 58 listed. Filmtec home drinking water elements are rated at 50 psi and will purify about 20% more water than competitive elements rated at 60 psi. Because of environmental factors actual production may vary. From the Manufacturer The Dow Filmtec TW30-1812-50 is a drinking water reverse osmosis element made using advanced technology to ensure consistent performance and quality for all customers. ## Features - membrane - Imported - 98% Stabilized Salt Rejection (Minimum Rejection 96%) - NSF/ANSI Standard 58 listed - Membrane Dimensions: 11.75" Overall Length, 1.75" Diameter (Fits Standard 2" ID Membrane Housings) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00D43H6GQ | | Best Sellers Rank | #517,438 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3,213 in Replacement Under-Sink Water Filters | | Brand Name | Dow Filmtec | | Customer Reviews | 4.4 4.4 out of 5 stars (187) | | External Testing Certification | NSF | | Global Trade Identification Number | 00163120791897, 00689466099058 | | Item Dimensions D x W x H | 1.75"D x 11.75"W x 1.75"H | | Item Weight | 181 g | | Manufacturer | Dow Filmtec | | Manufacturer Part Number | TW30181250 | | Material Type | Polyamide Thin-Film Composite | | Model Number | TW30-1812-50 | | Number of Items | 1 | | Product Benefits | Produces 50 Gallons per Day of Purified Water at 99% Salt Rejection | | Set Name | TW30-1812-50 | | UPC | 826333000407 809390006797 851905124786 885199792703 163120791897 689466099058 808112764205 799705704152 132017518428 700999871734 115971042208 807032976118 786514667204 182682390089 798527533063 | | Unit Count | 1 Count | ## Product Details - **External Testing Certification:** NSF - **Item Weight:** 181 g - **Material:** Polyamide Thin-Film Composite - **Product Benefits:** Produces 50 Gallons per Day of Purified Water at 99% Salt Rejection - **Product Dimensions:** 1.75"D x 11.75"W x 1.75"H ## Images ![TW30-1812-50 Reverse Osmosis Membrane , Blue - Image 1](https://m.media-amazon.com/images/I/51ks0o8OUWL.jpg) ## Questions & Answers **Q: Is there a difference in product between model numbers tw30-1812-50d, tw30-1812-50, and tw30-1812-50 gpd tfc?** A: Not really, they are all the same size and 50 gpd membranes. Different companies have different part numbers for them. The D on one is for dry pack, in which almost all are dry pack you will see. There are some wet pack but you do not see them often. Both are the same and work the same. The tfc just means thin film composite in which all these are the same, they are tfc **Q: Dow website shows only "tw30-1812-50hr". this one is missing "hr". what is the difference ?** A: I am not positive but I believe the last digit is the maximum flow rate of the RO in gallons per hour. **Q: will it fit express water ro5dx or global water ro505** A: Yes. **Q: What is the difference between the tw30-1812-50 and the tw30-1812-36 membrane? thanks.** A: The tw30-1812-50 will produce 50 gpd (gallons per day) of filtered water. The other is rated to filter 36 gpd. These are not interchangeable, as your system has to have a flow restrictor to match the flow specification of the membrane. There is a good explanation of this on www.waterfiltersonline.com. ## Frequently Bought Together - Dow Filmtec TW30-1812-50 Reverse Osmosis Membrane , Blue - Home Master ISetTMA8 Artesian And HydroGardener Replacement Water Filter Change Set, White - Home Master Iset-TMA-HGP Filter Change Set, 3 Count (Pack of 1), White --- ## 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.id/products/17413330-tw30-1812-50-reverse-osmosis-membrane-blue](https://www.desertcart.id/products/17413330-tw30-1812-50-reverse-osmosis-membrane-blue) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-10-08*