Ordering Description Product number Description: Aristo 500ix CSA Product number: 0446200881 Description: Aristo 500ix, 380 – 575V w/ RobustFeed U6, Tweco Product number: 0558102716 Description: Aristo 500ix, 380 – 575V w/ RobustFeed U6 water, Euro Product number: 0558102738 Description: Aristo 500ix, 380 – 575V w/ RobustFeed U82, Euro Product number: 0464663241 Description: Aristo 500ix, 380 – 575V w/ RobustFeed U82, Tweco Product number: 0464663242