--- product_id: 261301317 title: "HI758-26 Marine Calcium Checker Reagents - 25 Tests" brand: "hanna instruments" price: "VT13815" currency: VUV in_stock: true reviews_count: 8 category: "Hanna Instruments" url: https://www.desertcart.vu/products/261301317-hi758-26-marine-calcium-checker-reagents-25-tests store_origin: VU region: Vanuatu --- # Expiration & lot number for traceability High purity chemicals ensure accuracy Pre-measured reagents for precision HI758-26 Marine Calcium Checker Reagents - 25 Tests **Brand:** hanna instruments **Price:** VT13815 **Availability:** ✅ In Stock ## Summary > ⚡ Stay ahead of your marine game with precision that speaks volumes! ## Quick Answers - **What is this?** HI758-26 Marine Calcium Checker Reagents - 25 Tests by hanna instruments - **How much does it cost?** VT13815 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/261301317-hi758-26-marine-calcium-checker-reagents-25-tests) ## Best For - hanna instruments enthusiasts ## Why This Product - Trusted hanna instruments brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lab-Grade Purity:** Formulated with ultra-pure chemicals to deliver reliable, consistent results every time. - • **Effortless Precision:** Pre-measured reagents streamline your marine calcium testing routine with zero guesswork. - • **Fast & Accurate Results:** Utilizes the Zincon Method for a clear blue tint reaction, providing ppm calcium readings in seconds. - • **Optimized for Marine Tanks:** Designed specifically for calcium levels between 200-600 ppm, perfect for professional aquarists. - • **Traceability You Can Trust:** Each reagent batch is marked with expiration and lot numbers for full quality control. ## Overview The Hanna Instruments HI758-26 Marine Calcium Checker Reagents offer 25 pre-measured, high-purity chemical tests designed for fast, accurate calcium concentration readings in marine tanks. Compatible with the Marine Calcium Checker HC, these reagents use the Zincon Method to deliver reliable ppm results within a 200-600 ppm range, complete with expiration and lot number traceability for quality assurance. ## Description The HI758-26 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Calcium Checker HC. These reagents follow the Zincon Method in which the reaction causes a blue tint in the sample. By simply adding 1 mL of the first reagent to the sample, followed by a packet of the second reagent in the HI758-26 set, the reaction will take place and the HI758 will determine the concentration from the color that is produced. The results will be displayed in ppm of calcium. These reagents are designed to be used with samples that have an expected range of 200 to 600 ppm calcium.FEATURESPre-made reagents for ease of usePrepared with high purity chemicalsMarked with expiration date and lot number for traceability Review: OEM replacement reagents at a great price - These replacement reagents are a necessity if you plan to keep using your Hanna tester. Best price I could find on the internet. Does not come with the digital tester or test tubes - this is just the replacement reagent. The one I received had an expiration date 18 months from now which is way longer than I need but great for people who only have one tank or who test less frequently. Review: Hannah calcium - Works great will buy again ## Features - Pre-made reagents for ease of use - Prepared with high purity chemicals - Marked with expiration date and lot number for traceability ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00C2GWK30 | | Best Sellers Rank | #26,497 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #204 in Lab Consumables | | Brand | Hanna Instruments | | Brand Name | Hanna Instruments | | Customer Reviews | 4.7 out of 5 stars 125 Reviews | | Item Weight | 0.08 Kilograms | | Manufacturer | Hanna Instruments | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Hanna Instruments - **Item Weight:** 0.08 Kilograms - **Manufacturer:** Hanna Instruments ## Images ![HI758-26 Marine Calcium Checker Reagents - 25 Tests - Image 1](https://m.media-amazon.com/images/I/31sJA8CbYgL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ OEM replacement reagents at a great price *by T***R on February 24, 2026* These replacement reagents are a necessity if you plan to keep using your Hanna tester. Best price I could find on the internet. Does not come with the digital tester or test tubes - this is just the replacement reagent. The one I received had an expiration date 18 months from now which is way longer than I need but great for people who only have one tank or who test less frequently. ### ⭐⭐⭐⭐⭐ Hannah calcium *by R***A on April 1, 2026* Works great will buy again ### ⭐⭐⭐⭐⭐ Hanna checker *by D***S on February 20, 2025* I keep up with the testing of my tank and Hanna checkers is what I use and always need to refill at a affordable price --- ## 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.vu/products/261301317-hi758-26-marine-calcium-checker-reagents-25-tests](https://www.desertcart.vu/products/261301317-hi758-26-marine-calcium-checker-reagents-25-tests) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-03*