・ It is a glass trap ball with a spherical trap.
・ The tip of the side tube has a φ8 mm rubber stop, and the glass tube is inclined from the upper part of the trap to the side.
・ The inside of the trap is from the upper part of the tube from the upper part, and therefore the direct backflow from the lower C -conel -shaped connection.
・ It is used for hydrogen sulfide generator.