ERII vs NRK Comparison

Energy Recovery Inc is an engineering-driven technology company. It is engaged in engineering, designing, manufacturing and supplying solutions that make industrial processes more efficient and sustainable. The company operates in three segments, Water, Emerging Technologies and Corporate. It offers energy recovery devices (ERDs) and pumps as well as related products and services to the reverse osmosis desalination market. The company derives a majority of the revenue from the Water segment. Geographically, the company operates in the U.S. and other international countries.

Nuveen New York AMT-Free Quality Municipal Income Fund is a closed-end investment company. The Fund seeks to provide current income exempt from regular federal, New York State, and New York City income taxes, and from the federal alternative minimum tax for individuals, while enhancing portfolio value relative to the municipal bond market by investing in tax-exempt municipal bonds considered underrated, undervalued, or from undervalued municipal market sectors. It may invest in municipal securities such as lease obligations and certificates of participation, which provide an undivided interest in pools of municipal leases or installment purchase agreements.