Onsen 1.0L Accumulator Tank

The Onsen 1.0L Accumulator Tank is the perfect addition to your pressure water system, designed to improve performance and help extend the life of your water pump. Built to pair seamlessly with the Onsen 3.0 Pump, this compact accumulator tank helps reduce pump cycling, lower power consumption, and minimize plumbing noise and water hammer.

By acting as a pressure buffer, the accumulator tank delivers smoother, more consistent water flow and pressure throughout your system. This helps create a quieter and more efficient setup while improving overall comfort and performance.

The Onsen 1.0L Accumulator Tank is especially beneficial for systems using tankless gas water heaters, helping maintain more stable hot water temperatures. It’s an excellent solution for RVs, boats, cottages, cabins, and off-grid water systems.

Features

• Helps extend pump life
• Reduces pump cycling and power consumption
• Minimizes plumbing noise and pipe hammer
• Provides smoother and more consistent water pressure
• Improves hot water temperature stability
• Compact and easy to install
• Ideal for RV, marine, cottage, and off-grid applications

Specifications

• Model: 1.0L
• Tank Volume: 1 Liter
• Connection Size: 1/2” MNPT
• Pre-Charge Pressure: 10 PSI / 0.7 BAR
• Maximum Operating Pressure: 125 PSI / 8.6 BAR
• Weight: 1.06 lbs / 0.48 kg
• Dimensions: 12” x 4.6”
• Warranty: 2-Year Limited Warranty