Airtac GAF Filter GAF300N15J
The AirTAC Airtac GAF Filter GAF300N15J is a genuine compressed-air filter. Its diversion structure spins the air to separate liquid water and trap solid particles down to 40 µm, protecting downstream valves and tools. It has 1/2" ports and a 60 cc drain bowl. It is a filter only — it does not regulate or set pressure.
- TypeAir filter
- Port size1/2"
- Filtering grade40 µm
- Pressure range0.15 - 0.9 MPa
- Bowl materialNylon
- Drainsemi-auto + manual
- Drain bowl60 cc
- Weight360 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAF Filter GAF300N15J
The GAF300N15J is a genuine AirTAC air filter that spins incoming air to throw liquid water and solid particles into its 60 cc nylon drain bowl, while the 40 um HDPE element traps fine grain. It is a filter only, with no regulator and no pressure gauge, so it cleans the air without attempting to control pressure.
This model uses a 1/2in PT port and weighs 360 g, placing it in the GAF300 size class where the flow curve is plotted to 6000 L/min. The nylon bowl is a build choice for the environment, and since the bracket is omitted, you will need a panel mount or existing bracket rather than supporting the unit from the tubing.
Airtac GAF Filter GAF300N15J Technical Specifications
| Model | Airtac GAF Filter GAF300N15J |
|---|---|
| Series | GAF300 air filter |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Bowl material | Nylon |
| Drain type | Semi-auto drain + manual drain |
| Bracket | Not included (J) |
| Fluid | Air |
|---|---|
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Capacity of drain bowl | 60 cc |
| Element | HDPE filter core |
| Weight | 360 g |
Specifications follow the official AirTAC GAF catalogue (pages 225-226). Air must not freeze in the unit. This is a filter only — it separates water and solid particles but does not set or hold a downstream pressure. To regulate pressure as well, use the matching GAFR300 filter-regulator.
Model Code: Airtac GAF Filter GAF300N15J
| GAF300 | GA300 series air filter — sets the port range, drain-bowl capacity and weight. |
|---|---|
| N | Bowl material: Nylon. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 15 | Port size 1/2". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| (blank) | Drain: Semi-auto drain + manual drain. |
| J | No bracket (J) — supplied without the mounting bracket. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT port thread. |
A GAF has no regulator and no pressure gauge — there is no type, gauge or reflux code. Need to regulate pressure too? The matching GAFR300-15 is the same filter with a built-in regulator.
Size Class & Flow Envelope
- GAF2001/8"-1/4" · 3000 L/min
- GAF3001/4"-1/2" · 6000 L/min
- GAF4003/8"-1/2" · 8000 L/min
- GAF5003/4" · 9000 L/min
- GAF6003/4"-1" · 12000 L/min
Figures are the end of the flow curve plotted in the AirTAC catalogue — a sizing envelope for comparing bodies, not a rated flow. Read the catalogue curve for a real duty point. A filter this size drops less pressure at flow than the same-body GAFR filter-regulator, so match it to your peak demand.
| This model | GAF300 · 1/2" · curve to 6000 L/min |
|---|---|
| One size down | GAF200 |
| One size up | GAF400 (curve to 8000 L/min) |
| Add regulation | GAFR300-15 (filter + regulator) |
Where the Airtac GAF Filter GAF300N15J Is Used
Machine tool air prep
Protect a CNC tool changer or a precision pneumatic clamp from water and 40 um-scale grit. The 1/2in port feeds the air supply while the nylon bowl stands up to the shop environment.
Test bench supply
Clean the air feeding a pneumatic test fixture or a calibration station. The semi-auto drain purges condensate automatically, and the manual drain gives you a quick check during setup changes.
Small assembly line
Guard a multi-station assembly machine where several valves share one 1/2in feed. The 60 cc bowl holds enough condensate for a shift, and the 6000 L/min envelope covers moderate total consumption.
Is the Airtac GAF Filter GAF300N15J the Right Filter?
Choose the GAF300 body when you need a 1/2in port with a 60 cc drain bowl, stepping up from the GAF200's 25 cc bowl if your line runs wetter or serves more equipment. The nylon bowl suits applications where you prefer its material properties, and the semi-auto plus manual drain gives you both automatic purging and a manual override. The J code means no bracket is included, so plan a panel mount, and the 40 um element covers general-purpose filtration while the PT thread matches standard local fittings. If you also need to set a pressure, pair this filter with a GAR regulator or use the GAFR300-15 filter-regulator instead. The GAF300's 6000 L/min flow envelope is 2x the GAF200's 3000 L/min, so this body can feed roughly twice the air volume before pressure drop becomes a concern.
Quick checklist
- ✓ Body size for your peak flow (1/2" here)
- ✓ Element 40 µm (general) or 5 µm (fine)
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Bracket kept or removed (J)
- ✓ Need pressure control too? Use GAFR300
Installation & Maintenance Notes
- check Install with the airflow arrow: IN to OUT, bowl accessible.
- check Place the filter FIRST in the air-prep train, ahead of any regulator or lubricator.
- check Keep pressure at or below the 1.5 MPa (215 psi) proof limit.
- check Drain condensate before the 60 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 360 g unit on its bracket, not on the tubing.
This is a filter only — it removes water and solid particles but adds no pressure control and no lubrication. Add a GAR regulator, a GAL lubricator, or step up to the GAFR300-15 filter-regulator as your air-prep needs grow.
Airtac GAF Filter GAF300N15J FAQ
The GAF300N15J is a 40 um air filter with a 1/2in PT port, a 60 cc nylon drain bowl, and a weight of 360 g. Its working pressure range is 0.15-0.9 MPa (20-130 psi), with a proof pressure of 1.5 MPa (215 psi). The temperature range is -5 to 70 C, and the flow curve is plotted to 6000 L/min.
The J code means the mounting bracket is NOT included with this model. You will need to use a panel mount or an existing bracket to secure the filter. This is useful when you are replacing a unit in a fixed position or building a custom manifold.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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