Does the Eco Cassette and Chemical Cassette have the same volume/size?

The Eco and Chemical Cassettes are different sizes from each other.

Cassette volume specs:

• Chemical Cassette: 11L (2.9 gal) approx. 19 uses
• Eco Cassette: 9.4L (2.5 gal) approx. 23 uses
• Urine Container: 4.6L (1.2 gal) approx. 12-15 uses