30 Amp Marine Surge Protection Pigtail AdapterMarine surge protection pigtails provide a convenient and cost effective solution to detect and protect from unsafe electrical conditions such as open ground, open neutral, and reverse polarity. In addition, they are designed to protect marine electronics from power surges by absorbing the surge, and indicating that the product has been compromised.WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.