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🧪 Elevate your chlorine testing game with precision you can trust!
The Hach 2635300 SpecCheck Secondary Gel Standards Set offers ready-to-use, NIST-traceable DPD chlorine standards in a solid gel format, designed for quick and reliable instrument verification both in the lab and field. With a 2-year guaranteed performance and seamless compatibility with Hach colorimeters and spectrophotometers, this compact 140g set ensures consistent accuracy and convenience for professional water quality testing.






| ASIN | B00N4028YE |
| Batteries Required? | No |
| Best Sellers Rank | 56,723 in Garden ( See Top 100 in Garden ) 241 in Chlorine |
| Customer Reviews | 3.9 3.9 out of 5 stars (18) |
| Date First Available | 28 Aug. 2014 |
| Included components | … |
| Item Package Quantity | 1 |
| Item Weight | 140 g |
| Item model number | 2635300 |
| Manufacturer | HACH COMPANY |
| Material | PE_(Polyethylene) |
| Part number | 2635300 |
| Product Dimensions | 7.62 x 7.62 x 7.62 cm; 140 g |
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
3 days ago
3 weeks ago