Transparent and flexible plastic material. Length required for most aquariums, non-toxic, kink resistant. T&Y connectors allow you to split one input into 2 outputs for a second airstone or filter. Straight connectors are used to connect or extend air hoses. 3-Way Air Valve Distributor and Check Valve: The air valve distributor manually controls the flow or turns the air pump on or off, and is easy to operate. Smooth surface, durable and long service life. Small and compact, the check valve protects you from the air pump by preventing aquarium water from siphoning out in the event of a power outage. CUPS AND AIR STONES: The suction cups fit standard air valve manifolds and hoses. Easy to install and remove, each suction cup comes with a clip to attach the air line to the back/bottom of the tank or tank, providing a cleaner tank. The air stone can continuously generate fine air bubbles to diffuse oxygen, and it can be used for a long time after repeated cleaning. Wide range of
