4 Way Air Manifold with 8mm to 14mm Inlet and 8mm Outlets
Pond air splitter for larger inlet airline and four 8mm outlet lines
4 Way Air Manifold with 8mm to 14mm Inlet and 8mm Outlets is designed for pond, koi pond and lake aeration systems where a single larger air feed needs to be split neatly into four 8mm outlet lines. It is a useful option when running several air stones, diffuser discs, membrane diffusers or filter aeration points from one air pump feed.
The key difference with this manifold is the selectable inlet size. Instead of being limited to one fixed inlet barb, the product is available with 8mm, 10mm, 12mm or 14mm inlet options. This makes it easier to match the manifold to the main airline already being used from the air pump, while keeping the outlet side consistent at 8mm for diffuser and airline connections.
This is particularly useful on aeration systems where the main feed from the pump is larger than the individual lines going to each diffuser. Using a larger inlet can help reduce restriction before the airflow is divided, while the 8mm outlets make it practical to run separate lines to different parts of the pond, filter chamber or aeration setup.
Key benefits
- Four way air manifold for pond and koi pond aeration systems
- Choice of 8mm, 10mm, 12mm or 14mm inlet size
- Four 8mm outlet tails for splitting airflow to separate lines
- Useful for weighted airline, diffuser discs, air stones and filter aeration
- Helps create a neater installation than using multiple loose splitters
- Suitable for balancing airflow across several aeration points
- Works well with larger air pumps where the main air feed needs splitting
Available inlet options
| Option | Inlet size | Outlet size | Best suited to |
|---|---|---|---|
| 8mm inlet | 8mm | 4 x 8mm | Standard 8mm pond airline feeds |
| 10mm inlet | 10mm | 4 x 8mm | Larger air pump outlets and medium duty aeration lines |
| 12mm inlet | 12mm | 4 x 8mm | Higher airflow installations and heavier airline runs |
| 14mm inlet | 14mm | 4 x 8mm | Large air feeds where the inlet needs to be kept as unrestricted as possible |
Where to use this manifold
This manifold is best used where the air pump is supplying enough air for several outlets and the system needs a clean, organised way to divide the flow. It can be used with suitable pond airline, weighted airline, air stones, ceramic diffuser discs, membrane diffusers and aerated filter chambers.
For best performance, the main inlet airline should be sized sensibly for the air pump output and the length of the run. Long airline runs and small bore pipework can create unnecessary back pressure, so larger inlet options are helpful where the pump is set back from the pond, where the airline is longer, or where several diffusers are being supplied from the same feed.
Technical information
- Product type: Four way pond air manifold
- Available inlet sizes: 8mm, 10mm, 12mm and 14mm
- Outlet size: 4 x 8mm outlets
- Suitable for: Pond air pumps, koi pond aeration, weighted airline, air stones, diffuser discs and filter aeration
- Installation: Dry mounted close to the pump or positioned in a protected, accessible location where the air lines can be checked and adjusted
- Hose clip guidance: Use correctly sized stainless steel hose clips where a more secure connection is required
Related aeration products
- Air Manifold with 8mm Inlet and 4mm Outlets for smaller 4mm airline setups
- Air Pump Manifolds with 18mm Inlet and 4mm Outlets for multi outlet small airline systems
- 2 Way Air Manifold with 8mm to 14mm Outlets for splitting larger outlet airline into two lines
- 4 Way Air Manifold with 8mm to 14mm Outlets for four larger outlet airline runs
- Evolution Aqua Heavy Duty Sinking Airline for robust pond aeration pipework
- Super Heavy Duty Weighted Airline for larger pond and lake diffuser installations
- Ceramic Flat Air Discs for diffuser based pond aeration
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