Pentair IntelliTouch ScreenLogic 2 Interface and Wireless Connection Kit EC-522104
523434 and 520500 parts make 522104(same as EC-522104).
If you need a 522104(same as EC-522104) kit, you may buy 523434 and 520500 and save.
Pentair prohibits the sale of the EC-522104 kit at a price lower than $739 online.
EC-522104 is the online version of 522104 product which is a TradeGrade product and is sold only in brick and mortar stores.
The ScreenLogic Bundle (EC-522104 or 522104) conveniently includes the iPhone/ iPad/ iPod touch Mobile Digital Device/ Android Digital Device/ PC and Mac Interface kit (520500) and the ScreenLogic Interface Wireless Connection Kit (523434).
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