We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.
DOWNLOAD THE APP
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.
🧪 Calibrate with confidence — never second-guess your chlorine readings again!
The Hach SpecCheck Secondary Gel Standards Set offers four ready-to-use, sealed gel cells simulating chlorine concentrations from 0 to 2.0 mg/L Cl₂. Designed for quick and accurate instrument validation, these computer-formulated standards provide consistent color matching, a two-year shelf life, and non-hazardous handling, making them an essential tool for precise water quality testing in professional labs.
| ASIN | B00N4028YE |
| Best Sellers Rank | #202,125 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #289 in Analytical Reagents |
| Date First Available | August 28, 2014 |
| Item Weight | 4.9 ounces |
| Item model number | 2635300 |
| Manufacturer | HACH COMPANY |
| National Stock Number | 6550-01-504-0944 |
| Product Dimensions | 3 x 3 x 3 inches |
W**E
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.
J**H
Expensive
They expire less than a year from date of receipt
R**.
SpecChek works!
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.
Trustpilot
1 month ago
3 weeks ago