--- product_id: 11931791 title: "Hach Total Hardness Test Kit, Model 5-B, Drop Count Titration, 145300" price: "$78.85" currency: USD in_stock: true url: https://www.desertcart.us/products/11931791-hach-total-hardness-test-kit-model-5-b-drop-count store_origin: US region: United States of America --- # Measures hardness 1-30 gpg 100 tests per kit Simple drop count titration Hach Total Hardness Test Kit, Model 5-B, Drop Count Titration, 145300 **Price:** $78.85 **Availability:** ✅ In Stock ## Summary > 💧 Master your water hardness with precision and ease! ## Quick Answers - **What is this?** Hach Total Hardness Test Kit, Model 5-B, Drop Count Titration, 145300 - **How much does it cost?** $78.85 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/11931791-hach-total-hardness-test-kit-model-5-b-drop-count) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Complete Testing Kit:** Includes two reagents, measuring tube, square bottle, and scoop—everything you need for field or lab testing in one package. - • **Economical & Efficient:** Perform up to 100 tests per kit using the straightforward drop count titration method—cost-effective without compromising accuracy. - • **Trusted by Professionals:** Preferred by experts across water treatment, food & beverage, textile, and manufacturing industries for dependable water hardness analysis. - • **Multilingual Instructions:** Clear, easy-to-follow instructions in English, Spanish, French, and Portuguese—ready for global use and diverse teams. - • **Precision Hardness Measurement:** Accurately quantifies water hardness as CaCO₃ with a 1-30 gpg range, ensuring reliable results every time. ## Overview The Hach Total Hardness Test Kit Model 5-B offers a reliable, drop count titration method to measure water hardness as CaCO₃ within a 1-30 gpg range. Designed for both field and lab use, it includes all necessary reagents and tools to perform approximately 100 tests. Trusted by professionals across multiple industries, this kit combines accuracy, simplicity, and cost-efficiency with multilingual instructions for global accessibility. ## Description Hach Total Hardness Test Kit, Model 5-B, Drop Count Titration, 145300 | Water Analysis Kit, 2 Reagents, Measuring Tube, Square Bottle, Measuring Scoop: Air Tool Maintenance Kits: desertcart.com: Industrial & Scientific ## Features - Trust the original Hach test kit! Simple drop-count titration measures hardness as CaCO3 (1 gpg = 17.1 mg/L). Utilizes drop count titration with a range of 1-30 gpg. Contains approximately 100 tests. Drop count titration - a simple, economical titration method! - Includes two reagents, measuring tube, square bottle, and measuring scoop. - Field and lab water hardness testing made simple - Our water hardness test kits are trusted by professionals in water treatment, food and beverage, textile, manufacturing, and other industries. - Method Name: Drop count titration/EDTA-bulk powder. Parameter: Hardness, total - As CaCO₃. Platform: Drop Count Titration - Includes instructions in English on outside of box as well as an insert inside the box for Spanish, French and Portuguese. ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.6 out of 5 stars 2,042 Reviews | ## Images ![Hach Total Hardness Test Kit, Model 5-B, Drop Count Titration, 145300 - Image 1](https://m.media-amazon.com/images/I/81yV7KboZvL.jpg) ![Hach Total Hardness Test Kit, Model 5-B, Drop Count Titration, 145300 - Image 2](https://m.media-amazon.com/images/I/71RVtm+KigL.jpg) ![Hach Total Hardness Test Kit, Model 5-B, Drop Count Titration, 145300 - Image 3](https://m.media-amazon.com/images/I/71ZtWLJoNyL.jpg) ![Hach Total Hardness Test Kit, Model 5-B, Drop Count Titration, 145300 - Image 4](https://m.media-amazon.com/images/I/61dg9D1+EwL.jpg) ![Hach Total Hardness Test Kit, Model 5-B, Drop Count Titration, 145300 - Image 5](https://m.media-amazon.com/images/I/71PTkka3IYL.jpg) ## Questions & Answers **Q: Okay, what am I doing wrong. The water was blue, not pink when I added the microspoon of chemical, no drops added.** A: It means your water is soft already. If it was pink, then however many drops you add to turn it blue, thats how many grains hard your water is. Since you did not have to add any drops that means your water is 0 grains hard. **Q: What is the hardness range for this test kit? Thanks** A: You can always dilute your sample to extend the range. Dilute with soft water (distilled, clean rain water, or previously softened water). Just check that the soft water tests for zero hardness before using it. 1:1 dilution would double your range. 1:9 would extend the range by a factor of 10. A cheap drugstore syringe could be used for dilutions if you don't want to eyeball it. **Q: Does this kit come with the test tube and mixing bottle like the one from Hach?** A: Hach's part number 145300 does come with the measuring tube PN43800 and Glass Bottle PN 43900 **Q: Why would the color of soft water turn blue as soon as the indicator is added to the sample, without any additionof the titrant?** A: This happens normally, if the water is soft (zero grains of harness). The grains of hardness is the number of drops of titrant you have to add to get the water to turn blue. If you do not have to add any drops of titrant, then you have zero grains! ## Frequently Bought Together - Hach Total Hardness Test Kit, Model 5-B, Water Analysis Kit for Drop Count Titration, with 2 Reagents, Measuring Tube, Square Bottle & Measuring Scoop, 145300 - HoneForest Water Quality Tester, Accurate and Reliable, TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums, etc. --- ## 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.us/products/11931791-hach-total-hardness-test-kit-model-5-b-drop-count](https://www.desertcart.us/products/11931791-hach-total-hardness-test-kit-model-5-b-drop-count) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-07*