Selection guide:First: see the voltage you need (AC voltage code: AC DC voltage code: DC AC-DC voltage code: AC / DC)Second: the scale of the pipe to catch the ball DN15 20 25 32 Special Note: billable sale after the service, one year warranty.1. This product acquiescence made by STO or PepsiCo.2. If there are special requirements on the product, please inform the customer service in advance,