Grundfos 3” SQ pumps combine state-of-the-art design with rugged, quality construction. Designed to go into the same applications as standard 4” pumps, SQ’s light weight and small size or made for fast, easy installation, especially in less-than ideal wells. With a host of advanced features, Grundfos’ 3” SQ pumps set a new standard for what a submersible pump should be. SQ, SQE pumps are suitable for both continuous and intermittent operation for a variety of applications :