Do not buy a spa with Gecko product, particulary the ones with IPX-5 enclosure and the in.therm-H4.0 heater because when something break, you need to change half of the system (min 300$). For example, when the flow sensor break, you have to change all the heater part because it is integrated in the in.therm heater. So instead to cost me 30$ for a flow sensor, I will have to pay 300$! Their systems are simple to repair but you have to pay the price when it is needed. My communication with them about that let me understand that their system are made for service people in their mind and not for customer! Their is something that they do not understand. We are not stupid! If you sell something that could be compatible with their system and that are serviceable, let us know!