--- product_id: 354573742 title: "HI774-25 Hanna Instruments Phosphate Ultra Low Range Checker HC Reagents (25 Tests / 1 Pack)" brand: "hanna instruments" price: "HK$445" currency: HKD in_stock: true category: "Hanna Instruments" url: https://www.desertcart.hk/products/354573742-hi774-25-hanna-instruments-phosphate-ultra-low-range-checker-hc store_origin: HK region: Hong Kong --- # Ultra low range sensitivity (0.00-0.90 ppm) Direct ppm phosphate reading, no conversion Pre-measured high purity reagents HI774-25 Hanna Instruments Phosphate Ultra Low Range Checker HC Reagents (25 Tests / 1 Pack) **Brand:** hanna instruments **Price:** HK$445 **Availability:** ✅ In Stock ## Summary > ⚡ Stay ahead in water quality—test smarter, not harder! ## Quick Answers - **What is this?** HI774-25 Hanna Instruments Phosphate Ultra Low Range Checker HC Reagents (25 Tests / 1 Pack) by hanna instruments - **How much does it cost?** HK$445 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/354573742-hi774-25-hanna-instruments-phosphate-ultra-low-range-checker-hc) ## 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 - • **Precision in Every Drop:** Pre-made, high purity reagents ensure fast, accurate phosphate readings without guesswork. - • **Skip the Math, Read Directly:** No need for conversions—results display phosphate levels directly in ppm for instant clarity. - • **Compact Convenience, Big Impact:** Small, easy-to-use reagent packets streamline testing, saving time and reducing errors. - • **Tailored for Water Quality Pros:** Designed specifically for aquariums, aquaculture, and environmental monitoring with ultra low range sensitivity. - • **Trusted by Experts, Loved by Enthusiasts:** Top-rated with 4.6 stars, this reagent pack is a must-have for maintaining pristine water conditions. ## Overview The HI774-25 Hanna Instruments Phosphate Ultra Low Range Checker HC Reagents pack includes 25 pre-measured, high purity reagent packets designed for ultra low range phosphate testing (0.00-0.90 ppm). Compatible with the HI774 Checker, it delivers direct ppm phosphate readings without conversion, ideal for aquariums, aquaculture, and environmental water quality monitoring. Compact and user-friendly, it offers fast, accurate results trusted by professionals and hobbyists alike. ## Description The HI774-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Phosphate Ultra Low Range Checker HC. These reagents follow the Ascorbic Acid Method in which the reaction between phosphorus and reagents causes a blue tint in the sample. By simply adding the packet of HI774-25 reagent to the sample, the reaction will take place and the HI774 will determine the concentration from the color that is produced. The results will be displayed in ppb of phosphorus. These reagents are designed to be used with samples that have an expected range of 0.00 to 0.90 ppm phosphate. Easier to use and more accurate than chemical test kits; Dedicated to a single parameter; Small size, big convenience; Ideal for: Aquariums, Environmental, Aquaculture, Water Quality.. ## Features - Pre-made reagents for ease of use - Prepared with high purity chemicals - HI774 Ultra Low Range Phosphate Checker will be essentially the same specifications as the HI736 Ultra Low Range Phosphorus Checker however it will not require a conversion but read directly in parts per million phosphates compared to parts per billion phosphorus. - Ideal for: Aquariums, Environmental, Aquaculture, Water Quality - Hanna Phosphate HI774 Reagents ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09CHH2649 | | Best Sellers Rank | #40,486 in Pet Supplies ( See Top 100 in Pet Supplies ) #61 in Aquarium Test Kits | | Brand | Hanna Instruments | | Brand Name | Hanna Instruments | | Container Type | Bag | | Customer Reviews | 4.6 out of 5 stars 158 Reviews | | Item Weight | 2.08 ounces | | Manufacturer | Hanna Instruments | | Package Information | Bag | | Unit Count | 1 Count | ## Product Details - **Brand:** Hanna Instruments - **Item Weight:** 2.08 ounces - **Manufacturer:** Hanna Instruments - **Package Information:** Bag - **Unit Count:** 1 Count ## Images ![HI774-25 Hanna Instruments Phosphate Ultra Low Range Checker HC Reagents (25 Tests / 1 Pack) - Image 1](https://m.media-amazon.com/images/I/61npaGUwCZL.jpg) ## Frequently Bought Together - HI774-25 Hanna Instruments Phosphate Ultra Low Range Checker HC Reagents (2 Set - 50 Tests) - Hanna Instruments HI782-25 Marine Nitrate High Range Checker Reagents (25 Tests) - WLR Industries Hanna HI772-26 REAGENTS - 2 Pack - for HI772 checker Saltwater Aquarium Alkalinity Colorimeter Checker Tester - 50 Test Pack --- ## 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.hk/products/354573742-hi774-25-hanna-instruments-phosphate-ultra-low-range-checker-hc](https://www.desertcart.hk/products/354573742-hi774-25-hanna-instruments-phosphate-ultra-low-range-checker-hc) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-11-02*