10pcs Plastic One Way Check Valve for Aquarium Air Pump

Keep your aquarium air system secure with this 10-piece plastic one-way check valve. Designed to prevent backflow in aquarium air pumps and CO2 setups. What's in the package 10 pieces per package. Key features Material: Plastic One-way valve for aquarium air pump Suitable for CO2 systems Usage ideas Prevent backflow that can damage equipment Use with hobby aquariums and CO2 installations Care and maintenance Rinse with clean water before use Inspect for cracks and replace if damaged Specificatio