"The updated and improved range of Jabsco freshwater supply pumps is designed to provide years of satisfactory service in large and small applications. HD (Heavy Duty) models include a wider diameter motor with a powder coated shell, cast aluminum end bells, and a lower housing to improve pressure ability and service life. Available in configurations up to 6 GPM and 60 PSI, these pumps deliver exceptional performance. Standard models offer good performance in an economical footprint. These configurations are available in 1-3 GPM, perfect for ships with 1-3 outputs. A plastic housing protects the engines of these devices from corrosion. This 1 GPM model is best used with a single outlet (faucet, shower head, etc.). Connection fittings are included with the product, but an inlet strainer is not and should be purchased separately."