Sierra L5-30R Female Connector 30A 125V The 30A L5-30R Connector is designed with durable marine grade materials to resist severe environments. This 30A connector repairs and restores existing shore power plugs. The cords are secured in place with stainless steel due to its waterproof seal that keeps the moisture out. It features a ribbed outer casing for a more advanced grip. Features Durable Waterproof seal Ribbed outer casing Strain Relief NEMA L5-30R Configuration Replaces Marinco 305CRCN Sp