ZRDR 2L Aquarium CO2 System with Pressure Gauge and Atomiser

ZRDR 2L Aquarium CO2 System is designed to supply carbon dioxide to aquarium plants, with a 304 stainless steel generator and a pressure gauge for monitoring the system.

• 2L aquarium CO2 system — provides a dedicated CO2 source for planted aquariums.
• 304 stainless steel construction — offers an alternative to a simple plastic-bottle generator.
• Automatic pressure relief above 30KG — releases pressure when the internal pressure exceeds that point.
• 12V waterproof solenoid valve — controls the gas flow with a waterproof valve design.
• Atomizer included — creates finer bubbles that are easier to dissolve in aquarium water and absorb by plants.

For planted aquariums, this system generates CO2 using citric acid, baking soda and water—ingredients available in supermarkets. It is intended for aquarists who want a refillable CO2 setup with a pressure gauge, gas-flow control and bubble-refining components in one kit. When the gas runs out, the ingredients can be purchased again.

How does the ZRDR system deliver CO2 to aquarium plants?

The included atomizer refines the CO2 into smaller bubbles to help the gas dissolve in water and be absorbed by plants. The kit also includes a bubble counter and filter as part of the gas-delivery setup. During the first use, larger bubbles may appear in the atomizer; they gradually disappear within 3 days.

• Includes a stainless steel U-shaped tube and air tube measuring 1.5 m (4.9 ft).
• A check valve is included in the gas line components.
• The pressure gauge lets you monitor system pressure.

What are the generator and safety components made of?

The generator is made of 304 stainless steel, and the pressure reducing valve is stainless steel. An automatic pressure relief valve releases pressure if the inside of the CO2 steel bottle exceeds 30KG. The 12V solenoid valve has a waterproof design intended to reduce the risk of water leakage at the valve.

• The system is made by a manufacturer specializing in aquarium CO2 systems.
• A solenoid valve power supply and connecting line are included.
• The kit includes a wrench, base and four snap suckers.

What comes with the ZRDR 2L Aquarium CO2 System?

The kit includes the steel bottle, stainless steel pressure reducing valve, filter, bubble counter, solenoid valve, valve power supply and connecting line. It also comes with an atomizer and spare atomize piece, spare sealing ring, check valve, stainless steel U-shaped tube, base, air tube, wrench, four snap suckers, funnel and English installation instructions.

• Citric acid, baking soda and water are the operating ingredients and are purchased separately.
• Spare sealing and atomizer components are included for the system.

This setup suits aquarium keepers looking for a refillable CO2 system for planted aquariums, with a steel generator, pressure monitoring and an atomizer in the kit. It uses citric acid, baking soda and water, and includes the components needed to assemble its CO2 delivery system.