Aqua Medic Reducing T Piece - 4/6mm
Aqua Medic Reducing T Piece - 4/6mm
Taps a 4/6 mm control line off a larger hose run without cutting into new tubing. The Aqua Medic Reducing T-Piece is a barbed PVC fitting that splits a smaller branch line off a main reactor, filter or dosing hose run. It's the fitting used to bring a CO2 line into a reactor, or a dosing line into a return, while keeping the main flow path in one continuous hose size.
Key features
- Barbed push-fit connections — grips standard flexible aquarium hose without extra clamps in most low-pressure runs.
- PVC construction — resists the salt creep and constant wetting typical of reactor and dosing plumbing.
- Fixed 4/6 mm branch outlet — matches Aqua Medic's dosing pump and CO2 line tubing size.
- Three main-line sizes — 12/16 mm, 9/12 mm or 16/22 mm, so it fits directly into the hose size already running on your reactor, filter or return line.
Specifications
| Material | PVC |
|---|---|
| Fitting type | Barbed T-piece, push-fit |
| Branch outlet | 4/6 mm (fixed on all variants) |
| Main line sizes available | 12/16 mm, 9/12 mm, 16/22 mm (select at variant) |
Which size do I need?
| Variant | Main line size | Branch outlet | SKU |
|---|---|---|---|
| 12/16 | 12/16 mm | 4/6 mm | AM41040 |
| 9/12 | 9/12 mm | 4/6 mm | AM41041 |
| 16/22 | 16/22 mm | 4/6 mm | AM41042 |
Match the main line size to the hose already fitted to your reactor, canister or return line — the branch side is 4/6 mm on every variant.
Suitable for, and not suitable for
- Suitable for: low-pressure gravity and pump-fed hose runs on reactors, canister filters, dosing systems and CO2 lines.
- Not suitable for: high-pressure mains water plumbing, or as a structural joint under load — it's a hose barb fitting, not a threaded pressure fitting.
What's included
One reducing T-piece, sized to the variant selected. Hose is not included.
Warranty and delivery
Covered against manufacturing defects in addition to your rights under Australian Consumer Law. Small item, standard freight.
Common questions
Does the branch side always come out at 4/6 mm?
Yes — on all three variants the branch outlet is fixed at 4/6 mm. Only the main line size changes between variants.
Will it fit my existing hose without extra tools?
The barbed ends are a push fit onto standard flexible aquarium hose of the matching size. A hose clamp is recommended on any run under continuous pump pressure.
Can I use it to add a dosing line into a sump return?
Yes, this is one of its common uses — select the main line variant matching your return hose, and run the dosing tube off the 4/6 mm branch.
