★★★★★ 5
Just as good as OEM
Exactly what I expected...
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Reviewed in the United States on August 9, 2025
Control, BWG VS520SZ, P1 (2) , P2 (2) , Bl, Oz, Lt, 4kW, 230v
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Control, BWG VS520SZ, P1 (2) , P2 (2) , Bl, Oz, Lt, 4kW, 230vThis is a control box only with 4kw heater refer to "Recommended Items" or "Commonly Replaced Items" for available topsides, cords etc Product Specifications: Number Of Appliances 3 Manufacturer Balboa Water Group Model VS520SZ Supply Voltage 230v 4 Wire Heater Type Fixed Bottom Heater Wattage 4. 0kW Topside Included None Circ Pump Ready Yes 115v 230v Auxiliary Topside Ready Yes Fiber Optic No Accessory Ready Yes Wi Fi Compatible No 50 60 HZ 60Hz
Quick Dispatch:
Your Control, BWG VS520SZ, P1 (2) , P2 (2) , Bl, Oz, Lt, 4kW, 230v orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Control, BWG VS520SZ, P1 (2) , P2 (2) , Bl, Oz, Lt, 4kW, 230v ships.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.8 ★★★★★
Based on 1004 reviews
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Product Reviews
★★★★★ 5
Fit perfectly
Truly impressive, bought these and a set from a us boat supplier a thermostat made in the USA . They came with the gasket separate . I could not figure out how to put it together . I used these in my mercury optimax 135 hp . They fit perfectly and appear to be working great at a quarter the cost .
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Reviewed in the United States on August 29, 2024
★★★★★ 5
Handles the power
Size: 5FT, Style: 8AWG
Used for leads to handle high Amperage. Replaced cheesy 12 gauge leads that came with
the unit
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Reviewed in the United States on January 28, 2026
★★★★★ 5
Good stuff!
Size: 5FT, Style: 8AWG
Good quality silicone insulated wire. It’s very flexible and solders really well. The silicone insulation can’t be beat for heat resistance. I will definitely purchase again.
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Reviewed in the United States on January 12, 2026
★★★★★ 5
Awesome Wire
Size: 15FT, Style: 8AWG
These work great! I purchased these for my subwoofer and they do a great job! Super flexible! They have no weird smells either! Would buy again!
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Reviewed in the United States on November 7, 2025
