What's the best stethoscope for CSICU? (Gift)

My girlfriend will be going through the schooling and starting in a CSICU program pretty soon up here in British Columbia, and her current stethoscope just broke, im wanting to buy her a new one but I am unsure what to get. She currently has a littman classic III and was talking about a better one from the same brand? Hoping someone here could shine a light on what to get, ive linked the website she showed me once below. Thanks

https://stethoscope.ca/collections/littmann-stethoscopes?gad_source=1&gad_campaignid=21878689603&gclid=CjwKCAiAw9vIBhBBEiwAraSATj1r_8hPCeVI01GONh0bjVF1duasPM1qSYalrPopH7PQ-O5ED8CPRhoCc3AQAvD_BwE