• Push-fit fitting — pushes onto standard 4 mm airline tubing, no glue or clamps.
• Splits one line into two — run two outlets from a single pump outlet.
• Works both ways — also joins two lines into one if you're consolidating airflow.
• Pairs with a gate valve — add a gate valve on each branch to balance flow between outlets.

Suitable for splitting air from one pump to two air stones, sponge filters or ornaments, in fresh or marine tanks.

Not suitable for CO2 lines — this is an air fitting, not rated for pressurised CO2 systems. Splitting flow to two outlets also reduces the flow each outlet receives compared with running the pump into one line, so check your pump has enough spare capacity before adding a second outlet.

Rinse in fresh water if it becomes clogged or stiff. Replace it if a branch cracks or no longer holds a firm push-fit.

• Orca Air Line Gate Green — add a gate valve to each branch so you can balance flow between the two outlets.
• Orca Small Air Stone — a matched outlet for one of the two branches this piece creates.
• Bioscape Tropic Air Pump 500 Single w/Check Valve — check it has enough spare output before splitting its line in two.

This is a small consumable fitting and isn't covered by a separate manufacturer warranty; your rights under Australian Consumer Law apply regardless. It ships as a standard parcel item.

What size airline does it fit?

Standard 4 mm aquarium airline tubing.

Will splitting the line weaken the airflow?

Yes, to some degree — two outlets share the output of one pump, so each outlet gets less flow than if the pump ran a single line.

Can I add a valve to control each branch?

Yes, an inline gate valve on each branch lets you balance or throttle flow independently.

Is it usable in a marine tank?

Yes, it's suitable for both freshwater and marine setups.