Hiwi Metal check valve

Hiwi Metal check valve

  • High-quality check valve
  • Secures the CO2 supplying system
  • With connections for CO2 tubing
  • Arrow for correct connection
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The check valve secures the entire CO2 supplying equipment from water running back through the hose. The hose adapters on both sides are made for 4/6 mm CO2 hoses. The valve has to be installed into the system with the arrow following the direction of the gas flow.


  • Secures the CO2 system from water
  • With hose connection 4/6 mm on both sides
  • Arrow shows correct installation direction



    Hiwi is a renowned German manufacturer of CO2 pressure regulators. The highest level of quality and a long useful life are in their focus. These high quality standards do not exclude attractive prices, though.

    Especially in aquascaping, the addition of CO2 for the plants is something very basic, and thus it is really important to choose good CO2 supplying equipment. Hiwi meets even the highest quality standards in every aspect und is thus the best choice when it comes to CO2 pressure regulators.

    General information

    Item no.
    Weight 0,05 kg
    Shipping weight 0,10 kg

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