Shop RVs Shop Gear Use Up and Down arrow keys to navigate search results. 0 Home Outside RV Power Protection Voltage Management Voltage Management 9 Items Found Best Match Low to High High to Low Brand A-Z Brand Z-A Top Rated Best Selling Filter Hughes RV Autoformer Voltage Boosters & Surge Protector, 50 Amp 3.8 star rating 26 Reviews Sale $658.99 $732.99 Save $74.00 (10% Off) $15 off $99+ or $30 off $175+ Hughes RV Autoformer Voltage Boosters & Surge Protector, 30 Amp 4.4 star rating 31 Reviews Sale $404.99 $449.99 Save $45.00 (10% Off) $15 off $99+ or $30 off $175+ Digital Voltage Reader 4.8 star rating 18 Reviews Sale $15.99 $17.99 Save $2.00 (11% Off) $15 off $99+ or $30 off $175+ Online Exclusive PowerGrip - Voltage Protector 30A, GEN1 Sale $275.57 $606.99 Save $331.42 (54% Off) $15 off $99+ or $30 off $175+ Online Exclusive Install Kit - 50 Amp 5.0 star rating 1 Review Sale $110.99 $122.99 Save $12.00 (9% Off) $15 off $99+ or $30 off $175+ NEW Hughes Autoformer Mounting Bracket, 30 Amp or 50 Amp Autoformer Voltage Booster Sale $39.99 $49.99 Save $10.00 (20% Off) $15 off $99+ or $30 off $175+ Online Exclusive Install Kit - 30 Amp Sale $74.99 $82.99 Save $8.00 (9% Off) $15 off $99+ or $30 off $175+ Hughes Autoformer Spike Board 30A Replacement Module 5.0 star rating 1 Review Sale $34.99 $38.99 Save $4.00 (10% Off) $15 off $99+ or $30 off $175+ Hughes Autoformer Spike Board 50A Replacement Module Sale $56.99 $63.99 Save $7.00 (10% Off) $15 off $99+ or $30 off $175+ Your adventure awaits Sign up for emails and stay up-to-date on the latest news, events, and promotions. Enter your email address Sign Up I would like to recieve email information from affiliates of Camping World Help & Support Order Support Our Stores Our Partners Our Policies Product Support Corporate Info Good Sam Rewards Credit Card © CWI, Inc. 2021. All Rights Reserved.