For Oxygen Pumps Only: Great 1-way check valves for most common aquarium air pumps. DO NOT use them in CO2 or other high-pressure systems to avoid cracking or leakage.
Small & Light: Size: 1.66" L x 0.5" W; Diameter of air holes: 0.12"; Weight: 0.07 oz. Standard ID airline tubing: 3/16". Add little weight to your hose for smooth airflow.
Ideal Pump Protectors: Effectively prevent water backflow during a power outage or pause of the pump. Ideally protect your pump and reduce your loss when you’re at work or on vacation.
Sturdy Plastic: Dependable plastic which can be tightly connected to the hose without air leaks or restrictions. Always keep your fish lively and endure long-time use.
Detachable Design: Easy to detach it for cleaning and maintenance without using tools. Please stick something into the hole to poke it open when it gets clogged and restricts air flow.
