S Class Spa Pak Sale: $780.00 MSLP: $994.26 This Gecko Spa Pack was used on Hydropool Serenity Gold Series Spas from 2006 up to and including 2009. [60Hz, 4Kw Heater, Capability of: 1 Pump, Amp Cord Connections] we are located at 1-6721 butler cres off keating x road we have alot of spa paks in stock please call or swing by our showroom thanks and have a great day!