GROCO Pressure Storage Tank - 0.5 Gallon Drawdown

The GROCO Pressure Storage Tank - 0.5 Gallon Drawdown (PST-1) is a compact accumulator system designed for marine and automotive freshwater systems where consistent water pressure and flow are critical. This tank serves as a buffer between your water pump and demand points, reducing pump cycling and extending the operational life of your pressure switch and delivery pump.

Built with GROCO's marine-grade engineering standards, the PST-1 features a drawdown capacity of 0.5 gallons, which is the usable water volume between pump cut-in and cut-out pressures. The tank is constructed to handle both fresh and saltwater system corrosion concerns, making it suitable for demanding marine environments as well as terrestrial applications.

Mechanics and system installers benefit most from this tank when retrofitting older vessels or vehicles with undersized accumulators. Its compact footprint at 9 inches square and 14 inches tall allows flexible mounting in tight engine compartments, lazarettes, or utility compartments without sacrificing performance.