Wash bottles are laboratory containers used to dispense small amounts of liquids, often used to clean laboratory apparatus. They typically have a screw cap and a pointed spout for controlled dispensing.

“PP” stands for polypropylene, which is a type of thermoplastic polymer that is commonly used to make wash bottles because of its chemical resistance, durability, and low cost.

Polypropylene wash bottles are lightweight and transparent, allowing for easy monitoring of the liquid inside.