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Marine Products

2 Gallon Stainless Steel Accumulator

Specifically designed to be installed downstream of your pump, this 2-gallon Stainless Steel tank helps to reduce unwanted cycling, pulsation and pressure spikes, while helping to prolong pump life and save battery power. SHURFLO®'s Stainless Steel accumulator tank includes a patented domed displacement diaphragm to minimize noise and power usage.


California residents: see Proposition 65 information

Installation & Operation


Data Sheet / Replacement Parts



2 Gallon Stainless Steel Accumulator

Model Numbers OEM/Aftermarket

3400-002, 3400-002


12" H x 9" D [23cm H, 10 cm D]

Port Size

1/2" NPT-Male

Total Volume

2 Gallons [8.0L]

Maximum PSI

100 PSI [7.0 BAR]


20 PSI [1.4 BAR]

Easy to Install and Maintain
Stainless Steel Tank Provides Maximum Corrosion Resistance
Reduces Pump Cycling
Consistent Water Flow, Non-Fluctuating Temperatures
Large Capacity
Pre-Charged 20 PSI [1.4 BAR]
Model Number 3400-002


Model Number 3400-002


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