Includes two filled 4oz amber glass bottles with contents as shown in the listing image. The solution otherwise contains distilled water.

Bottles have simple and colorful waterproof labels for easy recognition from any perspective. 

Kits have upgraded Nitrile bulb material. Nitrile is significantly more resistant to corrosion than the common rubber bulbs, and prevents the infrequent issue with the Hydrochloric acid solutions corroding the bulb. 


Item is packaged with vaccuum seals and bubble wrap. Comes in a custom rigid box

Need 0-3500 ppm test strips for making CDS?
https://www.ebay.com/itm/386934211118

Seeking a bundle deal on a CDS kit?
https://www.ebay.com/itm/387310126560

This is a laboratory supply item. Any other uses are the buyer's responsibility. 

This is the exact formula reccomended by Jim Humble.