- Aquarium check valve is plastic material, safe and non-toxic.
- Function - Protects the air pump by preventing aquarium water from pouring during a power outage.
- Aquarium Control Valve External Hole Dia.4.5mm/ 0.177"; Overall Size: 53 x 14.5mm/ 2.1" x 0.57" (L*Max. D
- Installation - The aquarium check valve is easy to install and replace, no special tools needed.
- Purchase advice - before buying, make sure the size.
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