Red Sea CO2 Electronic Control Valve (Solenoid)

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This item has been discontinued.

Red Sea

Solenoid for automating dosing of CO2

Too much CO2 can reduce the pH in an aquarium to levels that are stressful for fish. For the safe use of CO2 it is highly recommended to automate the CO2 system with either a simple time switch or by a pH controller. The in-line solenoid Control Valve connects the CO2 system with either of these devices. Includes both a hose barb with lock nut for in-line connection on the CO2 tubing and a standard 1/8” thread for direct connection to a pressure reducer.

  • Low working temperature
  • Low (2W) power consumption
  • Connects to time switches or pH controllers
  • Suitable for all CO2 systems
  • Easy installation

Manufacturer Info

With a dedicated team of scientists and other professionals, Red Sea is widely recognized as a leading innovator and manufacturer of quality products for aquarium hobbyists. Red Sea constantly strives to provide hobbyists of all levels with highly effective solution-driven products designed to make your fish-keeping experience as enjoyable and successful as possible.

The embodiment of Red Sea’s dedication to providing solutions for today’s reef-keepers is its range of MAX-NANO, MAX-E & MAX-S aquariums- The only choice for true Plug & Play™ coral reef aquariums, now featuring the very latest in LED lighting technology.

For advanced reef-keepers the Red Sea REEFER provides a great platform into which you can add your own selection of hardware. With its ultra-clear glass, ATO built-in, silent flow valve and superb quality of finish the REEFER sets the standard for those wishing to customize. REEFER is also available as a Deluxe version with LED lighting included.

Red Sea’s unique Reef Care Program (RCP) provides a comprehensive, safe and easy to use program for testing and supplementing within reef aquaria, and is perfectly complemented by Red Sea’s Coral Pro & Red Sea Salt’s, which has become the salt of choice for those seeking the very highest quality water quality for their coral reef aquariums. Both salts are made using a unique natural process which delivers unrivalled homogeneity and is perfect for delicate corals. Check your individual bucket of salt’s composition using Red Sea’s innovative new “MyBatch” software.

Whatever your aquatic needs, Red Sea delivers high quality innovative, solution based products.



Experience Level: Intermediate

Quick, easy and reliable

Bought this to replace the solenoid that came with the Gauge for my CO2 tank. The first solenoid never worked right and CO2 would slowly leak. The Red Sea was really easy to install and is keeping the reactor at the ph I set. I am completely satisfied with this product.

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DIY'er from Minneapolis, MN


Experience Level: Expert

Red Sea CO2 ECV

The product was precisely what I needed for my calcium reactor. It may be intended for aquatic plants but it works equally well for a calcium reactor. The product arrived on time and in brand new, in the box condition.

0 out of 2 found this review helpful

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Experience Level: Expert

Red Sea C02 Valve

Gets a little hot but was easy to install and works well.

1 out of 1 found this review helpful

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