Enclosed motor Integrated Pressure Switch Vibration & Noise reducing mounting Self-priming Runs Dry without Damage Jabscos updated and improved lineup of freshwater supply pumps are designed to provide years of satisfactory service in applications both large and small. HD (Heavy Duty) models include a wider diameter motor with a powder coated shell, cast aluminum endbells and lower housing to improve pressure capability and life. Available in configurations up to 6 GPM and 60 PSI, these pumps deliver exceptional performance. Standard models provide good performance in an economical footprint. These configurations are available in 1-3 GPM, perfect for vessels with 1-3 outlets. A plastic housing protects the motors on these units from corrosion. This 1 GPM model is best used with a single outlet (faucet, showerhead, etc.). Port fittings are included with the product, however an inlet strainer is not and should be purchased seperately.