JBL Aquarium

JBL - ProSilent Safe - Check Valve

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JBL - ProSilent Safe - Check Valve
JBL - ProSilent Safe - Check Valve
JBL - ProSilent Safe - Check Valve

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Non-return valve that protects the air pump from rising water from the aquarium.

Learn more

  • Simple installation: insert the backflow preventer into the air hose of the air pump with the arrow pointing in the direction of the aquarium (air hose and air pump not included in delivery).
  • For Ø 4/6 mm air hoses
  • TÜV tested safety
  • Included in delivery: backflow prevention, ProSilent Safe


healthy fish
At night, it is advantageous to have an air pump for the aquarium, because plants do not produce oxygen without light. In sparsely planted aquariums, the pump provides the necessary water circulation.
In heavily planted aquariums, the air pump supplies the aquarium with oxygen at night, because the presence of many plants can cause the oxygen level to drop dangerously. In case of illnesses, the air pump increases the oxygen content in the water, which is necessary when using many medications.

Air pump protection
The ProSilent Safe backflow protection is TÜV-tested (German inspection) and in particular protects devices such as diaphragm pumps from rising water in the aquarium.
JBL - ProSilent Safe - Check Valve
JBL - ProSilent Safe - Check Valve

Non-return valve that protects the air pump from rising water from the aquarium.

JBL - ProSilent Safe - Check Valve
JBL - ProSilent Safe - Check Valve