Replenish your supply of premium, fast-dissolving saltwater with the ESV B-Ionic Seawater System Refill Kit. This product provides all the consumable components needed to create up to 200 gallons of high-purity saltwater using the B-Ionic four-part system. By keeping the core components separate until mixing, this system eliminates the issue of stratification found in traditional salt mixes, ensuring every batch is perfectly consistent and balanced for your reef aquarium.

Each 200-gallon refill kit consists of two 100-gallon kits, providing a complete set of ingredients including USP Grade Magnesium Sulfate, Ultra-Low Heavy Metal Sodium Chloride, and a solution of Pre-Dissolved Trace Elements. This unique multi-part approach not only guarantees batch-to-batch consistency but also results in one of the fastest-mixing saltwater solutions available, allowing you to prepare water for changes quickly and efficiently without long waiting periods for the salt to dissolve and clear.

This refill kit is designed specifically for aquarists who already utilize the ESV B-Ionic Seawater System and demand the utmost control and purity in their saltwater preparation. It is ideal for advanced hobbyists maintaining sensitive coral systems, such as SPS reefs, where stable and precise water parameters are critical. If you value consistency, speed, and high-quality components for your water changes, this refill system is the perfect solution to maintain your established routine.