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120/240 Volt System
![Balboa VS510S [5.5kW] Retrofit Kit Spa Control System (54218-Z) Spa Parts: Spa Control Systems (Balboa) 58-138-4010_XL_9ef78f1b-5948-46f1-aee8-d15cc79d7894](http://bathparts.com/cdn/shop/files/58-138-4010_XL_9ef78f1b-5948-46f1-aee8-d15cc79d7894.jpg?v=1751155944&width=1600)
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![Balboa VS510S [5.5kW] Retrofit Kit Spa Control System (54218-Z) Spa Parts: Spa Control Systems (Balboa) 58-138-3260_7-DIAGRAM__XL_ffe4abc8-9e70-4f05-84e9-347643ab4ce9](http://bathparts.com/cdn/shop/products/58-138-3260_7-DIAGRAM__XL_ffe4abc8-9e70-4f05-84e9-347643ab4ce9.jpg?v=1751155934&width=1600)
![Balboa VS510S [5.5kW] Retrofit Kit Spa Control System (54218-Z) Spa Parts: Spa Control Systems (Balboa) 58-355-8110_4-CONTROL__XL](http://bathparts.com/cdn/shop/products/58-355-8110_4-CONTROL__XL.jpg?v=1751155939&width=1600)
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![Balboa VS510S [5.5kW] Retrofit Kit Spa Control System (54218-Z) Spa Parts: Spa Control Systems (Balboa) 58-138-4010_XL_9ef78f1b-5948-46f1-aee8-d15cc79d7894](http://bathparts.com/cdn/shop/files/58-138-4010_XL_9ef78f1b-5948-46f1-aee8-d15cc79d7894_1024x.jpg?v=1751155944)
![Balboa VS510S [5.5kW] Retrofit Kit Spa Control System (54218-Z) Spa Parts: Spa Control Systems (Balboa) 58-138-3260_4-OPEN__XL_8c86c52f-3a88-47a6-903c-0e147233a58d](http://bathparts.com/cdn/shop/products/58-138-3260_4-OPEN__XL_8c86c52f-3a88-47a6-903c-0e147233a58d_1024x.jpg?v=1751155934)
![Balboa VS510S [5.5kW] Retrofit Kit Spa Control System (54218-Z) Spa Parts: Spa Control Systems (Balboa) 58-138-3260_7-DIAGRAM__XL_ffe4abc8-9e70-4f05-84e9-347643ab4ce9](http://bathparts.com/cdn/shop/products/58-138-3260_7-DIAGRAM__XL_ffe4abc8-9e70-4f05-84e9-347643ab4ce9_1024x.jpg?v=1751155934)
![Balboa VS510S [5.5kW] Retrofit Kit Spa Control System (54218-Z) Spa Parts: Spa Control Systems (Balboa) 58-355-8110_4-CONTROL__XL](http://bathparts.com/cdn/shop/products/58-355-8110_4-CONTROL__XL_1024x.jpg?v=1751155939)
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