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![Balboa, BP7 4.0kW Control [VS510SZ] Retrofit Kit (54371HC2) [G6405] Spa Parts: Spa Control Systems (Balboa) OPTIMIZE_BACKUP_PRODUCT_G6405-Side_86074046-401d-449a-b7fd-3e4bf523d102](http://bathparts.com/cdn/shop/files/OPTIMIZE_BACKUP_PRODUCT_G6405-Side_86074046-401d-449a-b7fd-3e4bf523d102.jpg?v=1769976111&width=2000)
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![Balboa, BP7 4.0kW Control [VS510SZ] Retrofit Kit (54371HC2) [G6405] Spa Parts: Spa Control Systems (Balboa) OPTIMIZE_BACKUP_PRODUCT_G6405-1](http://bathparts.com/cdn/shop/files/OPTIMIZE_BACKUP_PRODUCT_G6405-1_1024x.jpg?v=1769976110)
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![Balboa, BP7 4.0kW Control [VS510SZ] Retrofit Kit (54371HC2) [G6405] Spa Parts: Spa Control Systems (Balboa) OPTIMIZE_BACKUP_PRODUCT_G6405_-_Bottom_bd640a22-878e-45f6-9f89-ada9448f6712](http://bathparts.com/cdn/shop/files/OPTIMIZE_BACKUP_PRODUCT_G6405_-_Bottom_bd640a22-878e-45f6-9f89-ada9448f6712_1024x.jpg?v=1769976111)
![Balboa, BP7 4.0kW Control [VS510SZ] Retrofit Kit (54371HC2) [G6405] Spa Parts: Spa Control Systems (Balboa) OPTIMIZE_BACKUP_PRODUCT_G6405-Side_86074046-401d-449a-b7fd-3e4bf523d102](http://bathparts.com/cdn/shop/files/OPTIMIZE_BACKUP_PRODUCT_G6405-Side_86074046-401d-449a-b7fd-3e4bf523d102_1024x.jpg?v=1769976111)
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Balboa VS510SZ Spa Control System [NO Cords] (54371HC2)
System is Required to be installed by Professional Spa Technician (and any replacement board) is typically shipped in Setup 21
| Topside Dimensions |
| 6-3/8 " wide x 2-1/4" tall |
System Outputs:
240 VAC Pump #1
240 VAC Pump #2
240 VAC Blower
120/240v circulation pump
4.0 kW Heater
115/240 VAC Ozone (must match circ pump)
12 VAC Spa Light