Narrow-neck sterile 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). 35mm diameter cap, with an inner safety disc to prevent leaks and features ridges for easy opening and closing, even with gloves on. 31mm diameter mouth.
The bottle is labelled with a batch number and expiration date, and includes graduation marks.