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Add to Cart The item has been addedSet of (10) Diffusers, Poly Storm, Jet, Repair, 3 3/8" to 4", Face Width, Waterway, Back
MSRP: $139.99$109.97 -
Add to Cart The item has been addedBalboa ML400 Oval Topside Control Panel, 4 Button, 8 Pin Molex
MSRP: $264.00$196.97 -
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Add to Cart The item has been added -
Add to Cart The item has been addedOverlay Only, 4 Button, E4, VL400, Topside, Balboa, Light, Temp, Jet, Jet
MSRP: $28.99$23.97 -
Add to Cart The item has been addedTopside Control, Balboa, VL406U, 4-Button, LCD, Jets-Warm-Light-Cool
MSRP: $329.99$230.97 -
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Add to Cart The item has been addedOverlay Only, 3 Button, E4, VL400, Topside, Balboa, Light, Temp, Jet
MSRP: $28.99$23.97 -
Add to Cart The item has been addedTopside, Balboa, VL620S, 6 Button, w/o Overlay
MSRP: $329.99$245.97 -
Add to Cart The item has been addedBalboa ML551 Base Rectangular Topside Control Panel, 8 Pin Molex, 8 Button
MSRP: $321.12$269.97 -
Add to Cart The item has been addedBalboa S2 Rectangle with Rounded Sides Keypad 52254
MSRP: $399.99$300.97 -
Add to Cart The item has been addedSet of (5) Diffuser Waterway Mini Storm fits 3-3 5/16" Face Waterway Jets
MSRP: $129.99$65.97
Control Systems & Electronics
Control systems and electronics are the brain of your hot tub, managing everything from water temperature and jet activation to lighting and error diagnostics. This section covers control packs, topside panels, sensors, switches, and individual electrical components for major brands including Balboa, Gecko, and ACC. When your spa's electronics malfunction, Spa Guy Parts has the replacement parts to bring your system back online. Explore our full electronics catalog and enjoy free shipping over $75.