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Air Check Valve (2 Pack) - Hikari
Hikari$4.29Eliminate The Risk Of Water Siphoning Backwards Through Your Aquarium Airline! Cheap Insurance For Freshwater & Marine Aquariums Eliminates the chance of water siphoning backwards and damaging your pump or causing an electrical short High... -
Airline Tubing 10 Ft. (OZONE SAFE) - Python
Python$4.99Python airline tubing is non-toxic and ozone safe. The pale blue color makes it virtually invisible in your aquarium. It will stay flexible and never crack or turn yellow. 3/16in inside diameter. Fits all standard pumps and accessories. 3/16" Inside...