0.45 L expansion tank with copperwool filling, for use with standard variometers.
Logarithmic and "sensitive" varios require a single 9015 0.9 L capacity flask, or 2 of these 0.45 capacity flasks.
Dimensions: 65 mm (2.56") diameter, 280 mm (11.0") long, Weight: 0.18 kg (6.4 oz)