SEAFLO 2 Gal Pre-Pressurized Accumulator Tank — Reduces Pump Cycling, 87 PSI, 3/4" MNPT (Red)

The SEAFLO 2 Gallon pre-pressurized accumulator tank smooths water flow and reduces pump cycling to extend pump life and preserve battery power in RVs, boats, and off-grid systems.

Compact and rugged, this 2-gallon (8 L) accumulator arrives pre-pressurized and ready to install. Built to withstand up to 87 PSI with a corrosion-resistant finish and a standard 3/4" MNPT connection, it is designed for marine, RV, and off-grid plumbing where space is limited but reliable pressure control is essential. The integrated Schrader air valve makes pressure adjustments quick with a bicycle pump, so you can tailor the tank to your pump’s cut-in/cut-out settings and minimize wear from rapid cycling.

How does this tank reduce pump cycling and save battery power?

The accumulator stores a small volume of water under air pressure so the pump doesn’t have to start for every tap or brief demand. That reduces the frequency of pump starts, lowering electrical draw and mechanical wear.

• Pre-pressurized air bladder provides immediate pressure support.
• Stores water volume to cover short draws without pump operation.
• Less frequent starts cut energy use in battery-powered systems.
• Decreases pump motor runtime and extends service intervals.

Will it smooth out water flow and prevent water hammer?

Yes — the tank dampens abrupt pressure spikes and absorbs momentum from fast-closing valves. The result is steadier flow at showers and faucets and a quieter system with fewer pressure shocks.

• Absorbs pressure surges to reduce water hammer.
• Provides more consistent outlet pressure during use.
• Reduces vibration and pump noise transmitted through plumbing.

How easy is installation and pressure adjustment?

Installation is straightforward: the 3/4" MNPT inlet/outlet fits common plumbing layouts and the compact footprint fits tight compartments. The Schrader valve at the top allows fast pressure tuning using a bicycle pump or standard compressor to match your system’s desired cut-in pressure.

• 3/4" MNPT universal thread for simple plumbing connection.
• Compact design mounts easily in RVs, boats, or cabins.
• Schrader valve enables quick air-pressure fine-tuning.
• Pre-pressurized from the factory for faster setup.

Is this tank durable enough for marine and off-grid environments?

Constructed to operate up to 87 PSI with a corrosion-resistant finish, the tank is built for harsh environments where salt, moisture, and vibration are common. SEAFLO backs the product with a 4-year limited warranty to support long-term, dependable service.

• High-pressure design rated to 87 PSI (6 Bar).
• Protective, corrosion-resistant coating for marine use.
• Robust construction reduces risk of leaks and fatigue.
• 4-year limited warranty from SEAFLO for added confidence.

Who is this for? The SEAFLO 2 Gallon pre-pressurized accumulator is ideal for RV owners, boaters, tiny-home and off-grid operators, or anyone with a small pressurized water system who wants quieter operation, fewer pump starts, and improved energy efficiency. It's a practical upgrade if you’re looking to protect your pump, reduce battery draw on solar systems, or add a compact pressure-stabilizing device where space is limited. Check system compatibility—especially pump cut-in pressure and plumbing fittings—before installation to ensure optimal performance.