The 16 L agriculture drone tank (sometimes called the cowl top tank) is a large-capacity liquid reservoir specifically designed for crop-spraying drones used in precision agriculture. It stores up to 16 litres of liquid such as pesticides, herbicides, fertilisers, or water, enabling wide-area spraying without frequent refills. These tanks are key components of agricultural UAV spray systems that improve efficiency and coverage over fields, orchards, and plantations.