An Alternate Control Box is the New IN.YE-5 By Gecko. It is the next generation of controls and cost less. - BDLYE5K200
Gecko S-CLASS or SSPA Spa Control Box With 4.0 KW Heater Bundle (Including TSC-18 Topside Control & Cords).
TSC-18 Topside Control W/ Two Overlays Included (Measures 5" x 2-1/2") AMP Cords Included Temperature Sensor Mount Included
Schematic and Jumper Settings Gecko SSPA-1 and SSPA-MP Spa Pack Service Manual Topside Control Operation Instructions
* Installation instructions are on the back cover, please be sure to look at the jumper settings and wiring instructions for each pump, blower etc. Specifically the white wire to each one of these appliances. It is this wire that designates weather it will operate at 120 volts or 220 volts.