The Dupla CO2-Magnetic Valve enables semi or fully automatic CO2 control. It has a high quality brass valve body and provides reliable functioning at all times.
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(New Model - Formally Reactor 400)
The Dupla CO2 Reactor 500 is a product of the highest quality and reliability. Stringent and constant quality control in the production process in compliance with ISO 9001 results in a product with a long life cycle.
This device is recommended for aquaria up to a volume of 500 litres. The Reactor 500 causes a bypass of water from the filter pump to trickle over the internal cascade, mixing with inflowing CO2 gas. This enables a large diffusion capacity over the aquarium.
The capacity of the Reactor 500 may be reduced for small aquariums where no automatic control is employed. By removing one of the vent plugs on the reactor body, six different capacities may be selected