--- product_id: 741232715 title: "HANNA HI 774-25 Phosphate Ultra Low Range Checker Reagents (25 Tests)" brand: "hanna instruments" price: "288.90 DT" currency: TND in_stock: true category: "Hanna Instruments" url: https://www.desertcart.tn/products/741232715-hanna-hi-774-25-phosphate-ultra-low-range-checker-reagents store_origin: TN region: Tunisia --- # Ultra low range phosphate detection (0.00-0.90 ppm) Expiration & lot number traceability Pre-measured high purity reagents HANNA HI 774-25 Phosphate Ultra Low Range Checker Reagents (25 Tests) **Brand:** hanna instruments **Price:** 288.90 DT **Availability:** ✅ In Stock ## Summary > ⚡ Unlock ultra-precise phosphate insights with zero hassle! ## Quick Answers - **What is this?** HANNA HI 774-25 Phosphate Ultra Low Range Checker Reagents (25 Tests) by hanna instruments - **How much does it cost?** 288.90 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/741232715-hanna-hi-774-25-phosphate-ultra-low-range-checker-reagents) ## 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 - • **Plug & Play Convenience:** Simply add the reagent packet to your sample—no prep needed, just instant results. - • **Precision in Every Drop:** Pre-made, high purity reagents ensure fast, accurate phosphate readings every time. - • **Traceability You Can Trust:** Each reagent packet is marked with expiration date and lot number for reliable quality control. - • **Trusted by Pros & Hobbyists:** Top-rated (#509 Aquarium Accessories) with 4.8 stars from 369 users, made in the USA by Hanna Instruments. - • **Designed for Ultra Low Range:** Optimized for detecting phosphate levels as low as 0.00 ppm up to 0.90 ppm—perfect for sensitive aquatic environments. ## Overview The HANNA HI 774-25 reagent packets are pre-measured, ultra-pure chemical blends designed for ultra low range phosphate testing (0.00-0.90 ppm) using the Ascorbic Acid Method. Marked with expiration and lot numbers for traceability, these reagents deliver fast, accurate phosphate concentration results in ppb, ideal for aquariums, environmental monitoring, and aquaculture. Compatible with Hanna's Phosphate Ultra Low Range Checker HC, they are a trusted choice with high customer ratings and USA manufacturing. ## 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. ## Features - Pre-made reagents for ease of use - Prepared with high purity chemicals - Marked with expiration date and lot number for traceability - Ideal for: Aquariums, Environmental, Aquaculture, Water Quality ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07SN7NSHP | | Best Sellers Rank | #4,317 in Pet Supplies ( See Top 100 in Pet Supplies ) #150 in Aquarium Accessories | | Brand Name | Hanna Instruments | | Country of Origin | USA | | Customer Reviews | 4.8 4.8 out of 5 stars (385) | | Global Trade Identification Number | 00860012631049 | | Manufacturer | Hanna Instruments | | Model Number | HI774-25 | | Part Number | HI774-25 | ## Product Details - **Brand:** Hanna Instruments - **Global Trade Identification Number:** 00860012631049 - **Manufacturer:** Hanna Instruments ## Images ![HANNA HI 774-25 Phosphate Ultra Low Range Checker Reagents (25 Tests) - Image 1](https://m.media-amazon.com/images/I/41l36La1ipL.jpg) ## Questions & Answers **Q: it says expiration date 5/2021 , are they still usable?** A: Probably, they are dry reagents. I would suggest ordering a new batch, comparing tests, and then decide. **Q: The photo shows an expired reagent. This are not expired are they?** A: No there not expired. **Q: So just to confirm hi774 is the same as hi736?** A: Hello hi774 is NOT the same as hi736. HI774-25 is designed to be used with samples that have an expected range of 0.00 to 0.90 ppm phosphate. HI736-25 is designed to be used with samples that have an expected range of 0 to 200 ppb phosphorus. ## Frequently Bought Together - Hanna Instruments HI774-25 Phosphate Ultra Low Range Checker HC Reagents (25 Tests) by wwG Store - Hanna Instruments HI782-25 Marine Nitrate High Range Checker Reagents (25 Tests) - 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.tn/products/741232715-hanna-hi-774-25-phosphate-ultra-low-range-checker-reagents](https://www.desertcart.tn/products/741232715-hanna-hi-774-25-phosphate-ultra-low-range-checker-reagents) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-06*