Re: Neptune 1.7hp Mighty Mite WC-1 Question Home › Forum › Ask A Member › Neptune 1.7hp Mighty Mite WC-1 Question › Re: Neptune 1.7hp Mighty Mite WC-1 Question thecoinboxReplies: 5Topics: 3 January 25, 2018 at 4:24 pm #70169 After much research and emails, the replacement seal is Mercury Quicksilver #26-24590. Found mine on eBay.