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🧪 Elevate your chlorine testing game with lab-grade precision—no prep, no hassle!
The Hach 2635300 SpecCheck Secondary Gel Standards Set offers fast, stable, and NIST-traceable DPD chlorine standards in a solid gel format. Designed for seamless use with Hach colorimeters and spectrophotometers, it guarantees 2 years of reliable performance, making it ideal for both lab and field instrument verification.






| ASIN | B00N4028YE |
| ASIN | B00N4028YE |
| Batteries Required? | No |
| Customer Reviews | 3.9 3.9 out of 5 stars (18) |
| Customer reviews | 3.9 3.9 out of 5 stars (18) |
| Date First Available | 27 March 2019 |
| Date First Available | 27 March 2019 |
| Item Package Quantity | 1 |
| Item Weight | 140 g |
| Item model number | 2635300 |
| Item model number | 2635300 |
| Manufacturer | HACH COMPANY |
| Manufacturer | HACH COMPANY |
| Part number | 2635300 |
| Product Dimensions | 7.62 x 7.62 x 7.62 cm; 140 g |
| Product Dimensions | 7.62 x 7.62 x 7.62 cm; 140 g |
W**E
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
They expire less than a year from date of receipt
R**.
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
1 month ago