Boat owners and RV enthusiasts - if you're dealing with a cracked or broken shore power collar, this Amp Up replacement ring is your easy fix! Designed specifically for 30A marine shore power cords and adapters, this UV-resistant plastic ring fits most major brands including Marinco, Hubbell, and others. The 2.36-inch inner diameter matches standard 30A connectors perfectly. That UV resistance is crucial for marine and RV use where sun exposure can destroy cheaper plastics quickly. Installation is straightforward - just replace your old, damaged ring with this new one and you're back in business. No more worrying about water getting into your electrical connections or dealing with loose fittings. Whether you're fixing up your boat before season or maintaining your RV for road trips, this simple part can prevent bigger electrical issues down the line. Much cheaper than replacing entire shore power cords when just the collar ring is damaged. The quality construction means it'll withstand marine environments without cracking or becoming brittle. Keep a spare onboard for emergencies - because electrical issues always seem to happen at the worst times. For safe, reliable shore power connections, this replacement ring delivers exactly what you need without breaking the bank. Simple solution for a common problem that every boat and RV owner faces eventually!