--- product_id: 292155144 title: "LANXESS DI Color Changing Deionization Resin - for Fish Tanks, Ponds & Aquariums, Reef Aquarium Grade 600 gram(1.3lbs) Purple FBA_LEWATIT NM65" brand: "kolar labs" price: "494.84 DT" currency: TND in_stock: true reviews_count: 5 category: "Kolar Labs" url: https://www.desertcart.tn/products/292155144-lanxess-di-color-changing-deionization-resin-for-fish-tanks-ponds store_origin: TN region: Tunisia --- # 0 TDS ultra-pure water Virgin nuclear grade purity Color-changing resin indicator LANXESS DI Color Changing Deionization Resin - for Fish Tanks, Ponds & Aquariums, Reef Aquarium Grade 600 gram(1.3lbs) Purple FBA_LEWATIT NM65 **Brand:** kolar labs **Price:** 494.84 DT **Availability:** ✅ In Stock ## Summary > 🟣 Transform your tank’s water quality with a color-changing purity revolution! ## Quick Answers - **What is this?** LANXESS DI Color Changing Deionization Resin - for Fish Tanks, Ponds & Aquariums, Reef Aquarium Grade 600 gram(1.3lbs) Purple FBA_LEWATIT NM65 by kolar labs - **How much does it cost?** 494.84 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/292155144-lanxess-di-color-changing-deionization-resin-for-fish-tanks-ponds) ## Best For - kolar labs enthusiasts ## Why This Product - Trusted kolar labs brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Aquarium-Safe for All:** Perfectly balanced for freshwater, saltwater, and reef tanks—protect your aquatic ecosystem effortlessly. - • **Vacuum-Sealed Freshness:** Mylar packaging locks in resin potency and shelf life until you’re ready to upgrade your water quality. - • **Visual Resin Life Tracker:** Purple-to-brown color change signals exactly when to replace—no guesswork, no downtime. - • **Zero TDS, Zero Compromise:** Achieve flawless ultra-pure water by removing every trace of dissolved solids post-RO filtration. - • **Premium Nuclear Grade Purity:** Manufactured by LANXESS with unmatched purity standards for the cleanest aquatic environments. ## Overview Kolar Labs LANXESS DI Color Changing Deionization Resin is a 600g premium mixed-bed resin designed to reduce total dissolved solids (TDS) to zero, ensuring ultra-pure water for freshwater and saltwater aquariums. Featuring a unique purple-to-brown color indicator, it visually signals resin exhaustion for timely replacement. Packaged vacuum-sealed to maintain freshness, this nuclear-grade resin is manufactured by LANXESS to the highest purity standards, making it ideal for reef and aquatic environments requiring pristine water quality. ## Description LANXESS DI Color Changing Deionization Resin is the perfect solution for aquarium systems and other applications where ultra-pure water is a must.Our color-changing resin is a mixture of anion and cation gel type ion anion exchange resins. The mixed resin is prepared from component resins which have been manufactured with the highest degree of purity for drinking water applications and converted to the H+ / OH form.Lewatit NM-65 is specially manufactured with a color indicator to visually show the exhaustion wavefront of exchanged ions during standard downflow service in cartridge application. You'll know the resin bed needs changing when the purple color turns to neutral.Detailed Instructions 500g of resin fills one standard 10-inch refillable cartridge, packed tight for maximum efficiency. For best results, use TDS monitor for rise in TDS and color change. Change resin upon exhaustion. Best used after reverse osmosis for zero TDS water for the aquatics industry. Pre-filter with catalytic carbon or carbon block to extend the life of resin if chloramines are present in source water.About LANXESSLANXESS has more than 75 years of experience manufacturing ion exchange resins and advanced water treatment solutions. LANXESS high-performance products have been used for decades in numerous industries to help purify and treat water and other liquids to rigorous quality and performance standards. Lewatit is a registered trademark of LANXESS GmbH. Review: 0 TDS - 0 TDS. Can’t taste the media in my drinking water. Works as advertised. Review: Works great. - Great quality stuff and probably the best value out there. ## Features - PREMIUM GRADE: High-capacity, mixed bed, virgin nuclear grade deionization resin; Manufactured by LANXESS to the highest degree of purity - FRESHNESS GUARANTEED: Packaged in vacuum sealed mylar bags to preserve freshness and shelf life - LOWERS TDS TO ZERO: Removes TDS left from RO filtration systems; Creates ultra-pure water - COLOR CHANGING INDICATOR: Changes from purple to brown when exhausted - SAFE FOR ALL AQUARIUMS: Creates a consistent, safe, ultra-pure water that can be used for all freshwater and saltwater aquariums and ponds ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06X6KR5DQ | | Batteries Included | No | | Best Sellers Rank | #82,000 in Pet Supplies ( See Top 100 in Pet Supplies ) #5,208 in Aquarium Accessories | | Color | PURPLE | | Customer Reviews | 4.4 4.4 out of 5 stars (152) | | Date First Available | 7 July 2017 | | Item Form | Gel | | Item Weight | 600 g | | Item model number | FBA_LEWATIT NM65 | | Number of Items | 1 | | Pet Type | Fish and Aquatic, Hydroponic, aquaponic | | Product Dimensions | 25.4 x 13.97 x 3.81 cm; 600 g | | Quantity | 1 | | Size | 600 gram(1.3lbs) | | batteries required | No | ## Images ![LANXESS DI Color Changing Deionization Resin - for Fish Tanks, Ponds & Aquariums, Reef Aquarium Grade 600 gram(1.3lbs) Purple FBA_LEWATIT NM65 - Image 1](https://m.media-amazon.com/images/I/71Yb8QNJRxL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ 0 TDS *by A***R on 23 January 2026* 0 TDS. Can’t taste the media in my drinking water. Works as advertised. ### ⭐⭐⭐⭐⭐ Works great. *by M***L on 26 April 2021* Great quality stuff and probably the best value out there. ### ⭐⭐⭐⭐⭐ Great DI RESIN! *by K***Z on 5 April 2018* Great Product!! Last a long time! Will definitely buy again...A+A+A+ ## Frequently Bought Together - Kolar Labs - DI Color Changing Deionization Resin – for Fish Tanks, Ponds & Aquariums, Reef Aquarium Grade (567 Gram, 1.25lbs) - iSpring F3 NSF Certified 6-Month Prefilter Replacement Water Filter Cartridge Pack Set for Standard Reverse Osmosis RO Systems --- ## 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/292155144-lanxess-di-color-changing-deionization-resin-for-fish-tanks-ponds](https://www.desertcart.tn/products/292155144-lanxess-di-color-changing-deionization-resin-for-fish-tanks-ponds) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-04*