Some products on the website have a picture of several bottles, what is actually included in these products?
Stock photographs for products on website.
Hach offers several liquid chemical products that are all in the same bottle. To simplify the management of hundreds of individual product photos, a single stock photo is used for multiple products that use the same bottle. This is the case for many products that come in 100 mL bottles (Product # ending in -32), 500 mL bottles (Product # ending in -49), 1 L bottles (Product #ending in -53), and for Stablcal® standard kits for calibration. There are other examples as well, but these are some of the most common.