Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Hughes Autoformers RV220-50SP 50 Amp Voltage Booster with Surge ProtectionThe legendary, original, and patented RV voltage booster, now with the worlds most advanced surge protection. The Hughes Autoformers 50 amp RV power boosting Autoformer (RV220 50 SP) has the same performance and reliability of the original RV220 50, now with advanced surge protection built in! The unit offers 4,800 Joules of surge protection and constantly monitors incoming power to protect against spikes or surges. As an extra feature, the surge
The legendary, original, and patented RV voltage booster, now with the world’s most advanced surge protection.
The Hughes Autoformers 50 amp RV power boosting Autoformer (RV220-50-SP) has the same performance and reliability of the original RV220-50, now with advanced surge protection built in! The unit offers 4,800 Joules of surge protection and constantly monitors incoming power to protect against spikes or surges. As an extra feature, the surge / spike protection module is also replaceable. In the event of a massive spike, the surge unit will take the hit, ensuring your booster and – more importantly – your RV is not damaged.
The Hughes Autoformer is the only U.S. patented voltage boosting solution available today. All others are imitations.
The unit will automatically start boosting 10% if the voltage drops to 113 or below. If the incoming voltage is 115 V or higher, you will have only a 2% boost.
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Key Features:
- Replaceable Surge / Spike Module – should you get hit by a large spike, simply order a new surge module rather than replacing the entire unit. (order online)
- Fully Automatic 10% boost when needed
- Complete LED Park Power Diagnostics ensure you are aware of any hazardous park power conditions and any faulty wiring.
- Boost indicator light
- Voltage Booster & Surge Protection all in one!
- Free Security Cable Lock to help prevent theft.
- Made in the U.S.A.
- Note: this unit is compatible with “dog bone” adapter cables, but is NOT compatible with GFCI outlets.
- 50 Amp Voltage Booster with Surge Protection
- Current: 50 Amps (30 Amp is available)
- Surge Protection: 4,800 joules of advanced surge protection for your RV
- Wire Diameter: Heavy duty 6/3 gauge
- Dimensions: 12” H x 8 ½“ W x 5½” D Weight: 35 lbs.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.9 ★★★★★
Based on 636 reviews
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Product Reviews
★★★★★ 5
Great value for the price
Perfect fit,good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
★★★★★ 5
Power steering leak
Worked great. No problem at all.
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Reviewed in the United States on January 16, 2026
★★★★★ 5
perfect fit for 2005 acura rsx s-type
Why did you pick this product vs others?:
fixed my PS pump leak fast.
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Reviewed in the United States on July 7, 2025
★★★★★ 5
So good. No more whine!
Worked like a charm on a 2007 & 2009 Accord 4cyl
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Reviewed in the United States on December 18, 2025
★★★★★ 4
No instructions
No instructions... No idea which one is the high pressure side.They seem to be good quality but I have not used them yet...
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Reviewed in the United States on December 3, 2025