Silent solenoid valve for regulated CO2 addition

  • Supplement for CO2 fertiliser systems or CO2/pH control units: separate solenoid valve for dosing the CO2 supply in aquariums
  • Easy to use: integrate the solenoid valve into the CO2 supply hose of the fertiliser system or mount it directly on the JBL CO2 pressure reducer
  • CO2 addition when needed: setting of CO2 addition by activating a timer or via CO2/pH control unit (timer and control unit not included)
  • Safe and economical: 12 V safety transformer, low heat generation thanks to power input of 0.8 W, up to 50 % CO2 savings, no noise emission, electronic power supply
  • Package contents: 1 silent solenoid valve with hose securing and universal power supply unit
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Recommended retail price incl. VAT
Available from your specialist dealer.
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You can find this article at your specialist shop and online
Product information

Why do you need a solenoid valve or a night shut-off?
Since plants only need CO2 for photosynthesis during the lighting phase, you can turn off the CO2 supply at night. To save you having to turn the CO2 bottle on and off, there are solenoid valves (JBL PROFLORA CO2 VALVE) which can be controlled by a timer. The timer then switches, say, the light and the CO2 supply on via the solenoid valve in the morning and off again in the evening.
Shrewd aquarium owners will immediately recognise that the solenoid valve quickly recoups its cost price by saving the CO2 by half. It is always installed between the pressure reducer and check valve or directly screwed to the pressure reducer. If you want to use a pH computer with an automatic CO2 control, you’ll also need a solenoid valve. This is then not switched via the time switch, but via the pH control unit (JBL PROFLORA CO2 CONTROL).

Safe and economical
Thanks to its low power input of 0.8 W the valve body is hardly warm to the touch and operates with a 12 V safety transformer. The silent solenoid saves up to 50% CO2, since the CO2 supply is switched off at night.



Art. no.:
EAN Code:
12 V
Volume packaging:
1.93 l
Gross weight:
456 g
Net weight:
318 g
Weight factor:
Packaging dimensions (l/h/w):
105/152/121 mm


Animal species: Tetras, Barbels, Danionins, Livebearers, Cichlids - Small “Predators”, Cichlids - Algae Eaters, Cichlids - Large “Predators”, Labyrinth Fish, Goldfish, Veiltails, Catfish, Loaches, Blowfish, Spiny eels & Reedfish, Butterflyfish & Panchaxes, Killifish & Rainbowfish, Juvenile Fish, Silver arowana, Shrimps and dwarf crayfish, Discus fish, Crustaceans, Guppy, fighting fish, Flowerhorn cichlids, shrimps, cichlids: angelfish, discus, snails, molluscs
Animal size: For all animal sizes
Animal age group: All aquarium fish
Volume habitat: For all aquariums
Material: plastic (ABS), metal (stainless steel), metal (copper)
Colour: silver / black

Electronic label / illuminant

Mercury: No
Dimmable: No

Technical Data

Height:120 mm
Length:40 mm
Width:100 mm
May the JBL PROFLORA CO2 products only be used for the aquarium?

Yes, the JBL PROFLORA CO2 products are designed exclusively for use in the aquarium. The gas contained promotes plant growth and works with fine precision so that even the smallest quantities can be supplied to the aquarium. Constant operation and the safety of the fish are thus guaranteed.

Reference guide (Themeworld)


With the guarantee extension JBL GarantiePlus you secure your extra-long extended 4-year guarantee from the date of purchase for your JBL product. Do not miss out on your extended guarantee claim!

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safety instructions

  • safety instruction for technical devices
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spare parts
Customer reviews


Overall rating: 5.0
1 public review for this product.

0 Reviews

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A review in another language

P. Aßmann - German

Klar, dass als erstes Contra-Argument grundsätzlich sofort der Preis genannt wird. Nach längerem Überlegen habe ich mir das Magnetventil nun doch mal besorgt.

Im Vergleich zu den günstigen Produkten aus Fernost, die zum Teil wirklich sehr heiß werden und wahnsinnig laut schalten, wird dieses Ventil nicht warm und ist flüsterleise: Man bekommt es wirklich nicht mit, wenn es schaltet.

Somit ist das Magnetventil zumindest für mich trotz der einmalig höheren Anschaffungskosten preiswert (= es ist seinen Preis wert ?).

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