Product Description and Information:
Air check valveuse for :aquarium, fish tank
Color : red, clear
material : plastic
Hole outer diameter : 4.5mm/ 0.177"
overall size : 53 x 14.5mm/ 2.1" x 0.57" (l*max. d)
Weight : 15g
Package contents : 4 × air check valve
Protect you air pump by preventing aquarium water from back siphoning during a power outage.
Place in your airline tubing between your air pump and aquarium water to prevent water returning down the air line.
Delivery to US United States, payment Accept US Dollars