The Aquila Narragansett Tax-Free Income Fund Class A (NITFX) is a mutual fund that focuses on providing tax-free income to its investors. This fund primarily invests in municipal bonds issued by state and local governments, which are exempt from federal income tax. The fund aims to provide a steady stream of tax-free income while also preserving capital for its investors. With a ticker symbol of NITFX, this mutual fund is a popular choice for investors looking for tax-efficient ways to generate income.