The SP Powerworld EA440 Compatible Voltage Regulator is accepted worldwide as the only Quality, Legal and Cost effective alternative to using a Genuine Newage Stamford E000-24030 SX440. It's also Compatible with the following Stamford models:
Series 4 - 350-28700 - 350-24500 - E000-24010 - E000-24015 - Onan 305-0824.
Brochure & Manual: http://www.sp-powerworld.com/products/newage-series-avr/ea440
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