Narrow-neck rectangular HDPE bottles, suitable for water and/or food sampling for microbiological or environmental analysis. Made of translucent HDPE with a red HDPE cap (with thiosulfate) or a blue HDPE cap (without thiosulfate).
The square base provides greater stability. The material is drop-resistant (unbreakable). The cap has an inner safety disc to prevent leaks and features ridges for easy opening and closing, even with gloves on. The bottle is labelled with a batch number and expiration date, and includes graduation marks.