BMW part number 34-32-1-112-399
Can be used in several different applications:
Genuine ATE, OEM part for BMW.
Includes black plastic reservoir cap
Has two sturdy mounting tabs on the side near the top of the bottle
Has two downward facing ports on the bottom of the bottle
Has one port on the side, at below the "Min" level line, on a downward angle.
Minimum and Maximum levels marking molded into the semi-transparent plastic bottle