--- product_id: 364454463 title: "HI 782 25 Marine Nitrate High Range Checker Reagents (25 Tests)" brand: "hanna instruments" price: "€ 64.72" currency: EUR in_stock: true reviews_count: 13 category: "Hanna Instruments" url: https://www.desertcart.sk/products/364454463-hi-782-25-marine-nitrate-high-range-checker-reagents-25 store_origin: SK region: Slovakia --- # Expiration date & lot number traceability Accurate marine nitrate range 0-75 ppm Pre-measured high purity reagents HI 782 25 Marine Nitrate High Range Checker Reagents (25 Tests) **Brand:** hanna instruments **Price:** € 64.72 **Availability:** ✅ In Stock ## Summary > ⚡ Stay ahead in marine water testing with precision you can count on! ## Quick Answers - **What is this?** HI 782 25 Marine Nitrate High Range Checker Reagents (25 Tests) by hanna instruments - **How much does it cost?** € 64.72 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/364454463-hi-782-25-marine-nitrate-high-range-checker-reagents-25) ## 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 - • **Marine-Grade Accuracy:** Specifically designed for saltwater samples with a wide detection range up to 75 ppm nitrate. - • **Precision in Every Packet:** Pre-measured, high purity reagents ensure fast, reliable nitrate readings every time. - • **Traceability You Can Trust:** Each reagent is marked with expiration date and lot number for full quality control. - • **Effortless Testing Workflow:** Simply add reagent to sample and get instant colorimetric results with the HI 782 checker. - • **Consistent & Reliable Results:** Trusted by professionals for consistent accuracy and easy-to-use sealed packets. ## Overview The Hanna Instruments HI 782-25 reagent packets provide 25 pre-measured, high purity chemical tests designed for marine nitrate detection in saltwater samples. Using the Zinc reduction method, these reagents produce a pink tint proportional to nitrate concentration (0-75 ppm), delivering fast, accurate, and traceable results when used with the HI 782 Marine Nitrate High Range Checker. ## Description Product description The HI782-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Nitrate High Range Checker HC. These reagents follow the Zinc reduction method in which the reaction between nitrate and the reagent causes a pink tint in the sample. By simply adding the packet of HI782-25 reagent to the sample, the reaction will take place and the HI782 will determine the concentration from the color that is produced. The results will be displayed in ppm of nitrate (as NO3–). These reagents are designed to be used with saltwater samples that have an expected range of 0.0 to 75.0 ppm.FEATURESPre-made reagents for ease of usePrepared with high purity chemicalsMarked with expiration date and lot number for traceability Directions Simply add the HI782-25 reagent package to the sample, the reaction will occur, and the HI782 will determine the concentration of the color that is produced. Review: Consistent and Well Packaged - These reagents do what they’re meant to do. They’re simple to use with the HI 782 checker and the readings have been consistent and accurate for me. The packets are well sealed and easy to open. You only get 25 tests, so last well for what you pay, so they’re not the cheapest per test, but Hannah reliability isn’t questionable. Review: good - good as usual ## Features - Causes serious eye damage. - Harmful to aquatic life with long lasting effects. - 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 | B098V2XKP6 | | Best Sellers Rank | 28,652 in Pet Supplies ( See Top 100 in Pet Supplies ) 61 in Aquarium Test Kits | | Brand | Hanna Instruments | | Brand Name | Hanna Instruments | | Country Of Origin | Romania | | Customer Reviews | 4.6 out of 5 stars 596 Reviews | | Global Trade Identification Number | 00198715292268 | | Item Form | Powder, Tablets | | Item form | Powder, Tablets | | Manufacturer | Hanna Instruments | | Manufacturer Part Number | HI782-25 | | Model Number | HI782-25 | | Number of Items | 25 | | Number of Packs | 25 | | Pet Type | Fish | | Target Species | brackish water fish | | Unit Count | 25.00 count | | Unit count | 25.00 count | ## Product Details - **Brand:** Hanna Instruments - **Item form:** Powder, Tablets - **Manufacturer:** Hanna Instruments - **Number of items:** 1 - **Unit count:** 25.00 count ## Images ![HI 782 25 Marine Nitrate High Range Checker Reagents (25 Tests) - Image 1](https://m.media-amazon.com/images/I/512l5veYmYL.jpg) ## Questions & Answers **Q: I ordered this and the regent powder is clumpy. Has anyone run into this problem? I'm concerned the test reading can be inaccurate because of this.** A: My recent order was also clumpy and brownish in color. My reading does not appear accurate. Has anyone else verified? **Q: Does this include the liquid h1781a-0?** A: Don’t think so ## Customer Reviews ### ⭐⭐⭐⭐⭐ Consistent and Well Packaged *by P***A on 8 February 2026* These reagents do what they’re meant to do. They’re simple to use with the HI 782 checker and the readings have been consistent and accurate for me. The packets are well sealed and easy to open. You only get 25 tests, so last well for what you pay, so they’re not the cheapest per test, but Hannah reliability isn’t questionable. ### ⭐⭐⭐⭐⭐ good *by S***M on 11 April 2026* good as usual ### ⭐⭐⭐⭐⭐ Good *by T***Y on 3 February 2026* Expensive but they are one of the best reagents out there Hanna testers are very good and used by many aquarists. ## Frequently Bought Together - Hanna Instruments HI782-25 Marine Nitrate High Range Checker Reagents (25 Tests) - Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store - HI772-26 HI755-26 Alkalinity Checker Reagent (25 Tests) - Hanna Instruments --- ## 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.sk/products/364454463-hi-782-25-marine-nitrate-high-range-checker-reagents-25](https://www.desertcart.sk/products/364454463-hi-782-25-marine-nitrate-high-range-checker-reagents-25) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-08-24*