⚡ Elevate your water testing game with precision and speed!
The HACHSpecCheck Secondary Gel Standards Set offers fast, stable, and highly accurate low-range chlorine calibration for professional water quality testing, ensuring reliable and consistent results essential for regulatory compliance and laboratory-grade analysis.
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.
