--- product_id: 30333360 title: "SpecCheck Secondary Gel Standards Set, DPD Chlorine - LR 0-2.0 mg/L Cl₂, Chlorine Testing, Water Quality Standards, Accurate Chlorine Measurement, Laboratory Grade Chlorine Standards, 2635300" price: "$625.14" currency: USD in_stock: true reviews_count: 3 url: https://www.desertcart.us/products/30333360-speccheck-secondary-gel-standards-set-dpd-chlorine-lr-0-2 store_origin: US region: United States of America --- # 2-year shelf life 0-2.0 mg/L Cl₂ accuracy 4 sealed 10mL gel cells SpecCheck Secondary Gel Standards Set, DPD Chlorine - LR 0-2.0 mg/L Cl₂, Chlorine Testing, Water Quality Standards, Accurate Chlorine Measurement, Laboratory Grade Chlorine Standards, 2635300 **Price:** $625.14 **Availability:** ✅ In Stock ## Summary > 🧪 Calibrate with Confidence — Never Miss a Beat in Water Quality! ## Quick Answers - **What is this?** SpecCheck Secondary Gel Standards Set, DPD Chlorine - LR 0-2.0 mg/L Cl₂, Chlorine Testing, Water Quality Standards, Accurate Chlorine Measurement, Laboratory Grade Chlorine Standards, 2635300 - **How much does it cost?** $625.14 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/30333360-speccheck-secondary-gel-standards-set-dpd-chlorine-lr-0-2) ## 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 - • **Safe & Compliant:** Non-hazardous formulation eliminates the need for SDS, simplifying lab safety protocols. - • **Compact & Organized:** Includes four sealed glass cells, instructions, and a durable plastic case for easy storage and transport. - • **Precision in Every Drop:** Ready-to-use gel standards ensure consistent and accurate chlorine measurement every time. - • **Long-Lasting Performance:** Two-year shelf life from manufacture means less frequent replacements and more uptime. - • **Laboratory-Grade Reliability:** Computer-formulated gels simulate exact test colors for dependable instrument calibration. ## Overview The SpecCheck Secondary Gel Standards Set by Hach offers a ready-to-use, laboratory-grade solution for accurate chlorine testing within 0-2.0 mg/L Cl₂. Featuring four sealed 10 mL gel cells that simulate test colors, this kit ensures consistent instrument response with a two-year shelf life and non-hazardous formulation, making it an essential tool for precise water quality monitoring. ## Description Hach 2635300 SpecCheck Secondary Gel Standards Set, DPD Chlorine - LR Review: I would buy again - Product was as described and was only a month old so the expiration dates were far enough out that I would have a long life use for the item. Review: Expensive - They expire less than a year from date of receipt ## Features - Ready-to-use SpecCheck Secondary Standards Kits include four, 10 mL (1 inch) sealed glass cells with a blank and three different standards within the testing range of 0-2.0 mg/L Cl₂ (Low Range), instructions, plastic case and Certificate of Analysis. - Used to confirm consistent instrument response. - Vials are filled with gels that simulate the test color at various concentrations. - SpecCheck Standards are computer-formulated and have a two-year shelf life from date of manufacture. - Hach SpecChecks are non-hazardous and do not require an SDS. ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.2 out of 5 stars 18 Reviews | ## Images ![SpecCheck Secondary Gel Standards Set, DPD Chlorine - LR 0-2.0 mg/L Cl₂, Chlorine Testing, Water Quality Standards, Accurate Chlorine Measurement, Laboratory Grade Chlorine Standards, 2635300 - Image 1](https://m.media-amazon.com/images/I/514vTfNBwPL.jpg) ## Questions & Answers **Q: Hi, the product description says have a two-year shelf life from date of manufacture, how much time remains for expiration?** A: We do not know the exact date until we know what lot # was shipped. We will guarantee at least 50% of the shelf life. CorinaHach Company ## Customer Reviews ### ⭐⭐⭐⭐⭐ I would buy again *by W***E on December 13, 2020* Product was as described and was only a month old so the expiration dates were far enough out that I would have a long life use for the item. ### ⭐⭐ Expensive *by J***H on December 22, 2021* They expire less than a year from date of receipt ### ⭐⭐⭐⭐⭐ SpecChek works! *by R***. on March 15, 2019* This product is used to perform monthly accuracy checks required by the state of Texas for Hatch Chlorine Testers. The product arrived on time and was well packaged. ## Frequently Bought Together - Hach 2635300 SpecCheck Secondary Gel Standards Set, DPD Chlorine - LR - Hach 2893300 SpecCheck Secondary Gel Standards Set, DPD Chlorine - HR - Hach 2105569 DPD Free Chlorine Reagent Powder Pillows, 10 mL, (Pack of 100) --- ## 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/30333360-speccheck-secondary-gel-standards-set-dpd-chlorine-lr-0-2](https://www.desertcart.us/products/30333360-speccheck-secondary-gel-standards-set-dpd-chlorine-lr-0-2) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-06-22*