功能

• Use to collect water from any depth, such as a river. The lid and mouth of the glass jar are fitted with opening and closing fittings and a chain for operation. The weight at the bottom of the fitting is sunk to collect water.
• It can be sterilized to test for bacteria in water and stored in a separately sterilized metal container with a lid.
• Manufactured with reference to JIS K0102-1998.