Airwaterice Typhoon RO/DI differences

[lfs_150g]

Hi -
I am about to purchase a reverse osmosis system - and I read quite a few good things about Airwaterice's products.
They offer two systems that I have interest in:
TYPHOON III ($199) and the regular Typhoon ($139)
I know that the Typhoon III comes with a TDS meter (which can be purchased for around $20 alone).
Besides the TDS, what else does the Typhoon III offer as far as features? I checked out the website and can't see many differences (the core units are the same thing). I just want to know what is validating the $60 difference before I purchase.
Thanks!

 

[geridoc]

The Typhoon III has DI bypass and fast flush, features that should extend the life of the DI cart and the RO membrane. It also includes a pressure indicator, which can let you know when the membrane is clogging. Either way, the systems are easy to set up and use.