BornFeel Aquarium Air Pump Check Valves 16pcs Plastic One Way Non-Return Check Valve for Fish Tank Black

Description

Material: plastic Color: black Quantity: 16pcs Size: Air Hole Diameter: 4mm/ 0.16inch Overall Size: 4.3 x 1.5cm/ 1.7 x 0.6inch(LxD) Non Return Check Valves, 16pcs, enough for daily use and replacement. Air Hole Diameter: 4mm/ 0.16inch, overall size: 4.3 x 1.5cm/ 1.7 x 0.6inch(LxD). Proper size for universal air pump, fish tank, aquarium, fishing tackle shop, etc. Small and compact, which protect air pump by preventing aquarium water from back siphoning during a power outage.