10Pcs Plastic One-Way Check Valve for Aquarium, Non-Return Valve for Fish Tank Air Pump & CO2 System Accessories(Red 10PCS)

Structure : controlPort Size : 4mmPressure : Low PressurePower Source : DCStandard or Nonstandard : StandardActuator Mode : Without Manual And InstructionMedia : WaterPower : manualMaterial : PlasticTemperature of Media : Low TemperatureNC or NO : Normally OpenSize : 4mm Inner DiameterType : Plastic Check ValveFeature 1 : Aquarium Check ValveFeature 2 : Valve for Aquarium Air Pumppackage: 10pcs==========Battery Included : NoHigh-concerned chemical : NoneMaterial : PlasticPower (W) : NoneType : fish

• This set of 10 one-way check valves helps regulate directional flow in aquarium setups, supporting stable operation of air pump and CO2 systems in home aquatic environments.
• Made of sturdy plastic material that works well in long-term water exposure, maintaining consistent performance during regular aquarium use.
• Designed for easy connection to standard aquarium tubing, allowing quick installation into existing tank setups without extra tools.
• The non-return structure helps prevent backward flow, supporting steady working conditions for common aquarium equipment.
• Sufficient quantity provides multiple replacements for various tanks, supporting long-term maintenance and flexible use in household aquatic setups.