This is a new old stock (NOS) Ancor (Marinco) MDL 25 Amp Slowblow Fuse 2-Pack, part number 602250. Designed to provide reliable circuit protection for marine electrical systems, these marine-grade fuses are engineered to handle sustained overloads while tolerating in-rush currents. Each glass fuse measures 1/4" in diameter and 1-1/4" in length, fitting standard marine electrical fuse holders. Featuring corrosion-resistant construction, these fuses meet the UL 248-18 marine-grade specifications, ensuring they are ideally suited for harsh marine environments. The 2-pack offers replacement options or back-up protection for marine vessels. Each fuse is tested twice by the manufacturer, guaranteeing quality and reliability. Still in original packaging, these fuses are a dependable choice for those seeking to maintain or enhance their marine circuit protection systems.