--- product_id: 276594144 title: "LANXESS DI Color Changing Deionization Resin – for Fish Tanks Ponds & Aquariums Reef Aquarium Grade" brand: "kolar labs" price: "R2416" currency: ZAR in_stock: true reviews_count: 5 category: "Kolar Labs" url: https://www.desertcart.co.za/products/276594144-lanxess-di-color-changing-deionization-resin-â-for-fish-tanks store_origin: ZA region: South Africa --- # Lowers TDS to zero Color-changing indicator Premium nuclear-grade purity LANXESS DI Color Changing Deionization Resin – for Fish Tanks Ponds & Aquariums Reef Aquarium Grade **Brand:** kolar labs **Price:** R2416 **Availability:** ✅ In Stock ## Summary > 🟣 Transform your tank’s water quality with a smart color shift! ## Quick Answers - **What is this?** LANXESS DI Color Changing Deionization Resin – for Fish Tanks Ponds & Aquariums Reef Aquarium Grade by kolar labs - **How much does it cost?** R2416 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/276594144-lanxess-di-color-changing-deionization-resin-â-for-fish-tanks) ## 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 - • **Optimized Cartridge Fit:** Precisely 500g fills standard 10-inch cartridges for maximum efficiency and easy installation. - • **Vacuum-Sealed Freshness:** Mylar packaging locks in resin potency and shelf life until first use. - • **Visual Exhaustion Alert:** Purple-to-brown color shift signals resin replacement—never guess again. - • **Ultra-Pure Water Creation:** Drops Total Dissolved Solids (TDS) to absolute zero for pristine aquatic environments. - • **Universal Aquarium Safety:** Perfectly balanced for both freshwater and saltwater tanks, ensuring consistent water quality. ## Overview LANXESS DI Color Changing Deionization Resin is a premium mixed-bed resin engineered for aquariums and ponds, delivering ultra-pure water by reducing TDS to zero. Featuring a built-in color indicator that shifts from purple to brown when exhausted, it ensures timely resin replacement. Vacuum-sealed for freshness and manufactured to nuclear-grade purity standards, this resin is safe for all freshwater and saltwater aquatic environments and fits standard 10-inch cartridges for hassle-free use. ## Description Kolar Labs 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 Instructions500g 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: Super ! - Super comme la description je recommande ce produit. Livraison rapide . Review: Adiós kh del acuario - Si me bajo la dureza de el agua, fácil de instalar ## Features - PREMIUM GRADE: Full Canister, 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 | |---------------|-------| | Pet Type | Fish and Aquatic, Hydroponic, aquaponic | | Product Dimensions | 25.4 x 13.97 x 3.81 cm; 635.03 g | | Item model number | LEWATIT NM65 | | Color | PURPLE | | Size | Full Canister | | Quantity | 1 | | batteries required | No | | Batteries Included | No | | Item Weight | 635 g | ## Images ![LANXESS DI Color Changing Deionization Resin – for Fish Tanks Ponds & Aquariums Reef Aquarium Grade - Image 1](https://m.media-amazon.com/images/I/717XTLZbLdL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Super ! *by R***O on 21 December 2025* Super comme la description je recommande ce produit. Livraison rapide . ### ⭐⭐⭐⭐⭐ Adiós kh del acuario *by R***U on 6 February 2024* Si me bajo la dureza de el agua, fácil de instalar ### ⭐ They only ship 3.6lbs and tell you it’s 7.5lbs *by L***Y on 7 April 2021* ## Frequently Bought Together - Kolar Labs - LANXESS DI Color Changing Deionization Resin – for Fish Tanks, Ponds & Aquariums, Reef Aquarium Grade, Full Canister - Salifert Magnesium Test Kit, 6 Piece Set - Microbacter - 7 Bioculture Fresh & Marine 500ml --- ## 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.co.za/products/276594144-lanxess-di-color-changing-deionization-resin-â-for-fish-tanks](https://www.desertcart.co.za/products/276594144-lanxess-di-color-changing-deionization-resin-â-for-fish-tanks) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-07*