Airtac GAF Filter GAF300N08AJ
The AirTAC Airtac GAF Filter GAF300N08AJ 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 1/4" ports and a 60 cc drain bowl. It is a filter only — it does not regulate or set pressure.
- TypeAir filter
- Port size1/4"
- Filtering grade40 µm
- Pressure range0.15 - 0.9 MPa
- Bowl materialNylon
- Drainautomatic
- 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 GAF300N08AJ
The GAF300N08AJ 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 HDPE core traps fine grain. It is a filter only, with no regulator or pressure gauge, so it cleans the air but never sets pressure.
This 1/4in model weighs 360 g and uses a 40 um element, with an automatic drain for wet lines. The nylon bowl is a build choice for your environment, and the unit ships without a bracket for panel-mount installations.
Airtac GAF Filter GAF300N08AJ Technical Specifications
| Model | Airtac GAF Filter GAF300N08AJ |
|---|---|
| Series | GAF300 air filter |
| Port size | 1/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Bowl material | Nylon |
| Drain type | Automatic 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 GAF300N08AJ
| 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). |
| 08 | Port size 1/4". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| A | Drain: Automatic 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 GAFR300-08 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 · 1/4" · curve to 6000 L/min |
|---|---|
| One size down | GAF200 |
| One size up | GAF400 (curve to 8000 L/min) |
| Add regulation | GAFR300-08 (filter + regulator) |
Where the Airtac GAF Filter GAF300N08AJ Is Used
CNC spindle air
Protect a CNC spindle's air seal and tool changer from water and dirt with this 1/4in filter, where the automatic drain prevents condensate buildup during long cycles.
Instrument air prep
Feed a single precision valve or a small instrument loop with clean air, using the 40 um element to trap particles before they reach sensitive orifices.
Packaging line valve
Guard a pneumatic actuator on a packaging machine, where the nylon bowl and automatic drain reduce maintenance in a humid production area.
Is the Airtac GAF Filter GAF300N08AJ the Right Filter?
Choose the GAF300 body when you need 1/4in or 3/8in ports and a 60 cc drain bowl, stepping up from the GAF200's 25 cc bowl if you want fewer drain interventions. The nylon bowl suits your environment, while the automatic drain handles unattended operation; the missing bracket (J) suits panel mounting. With a 40 um element and PT ports, this filter protects downstream components, but if you also need pressure control, use the matching GAFR300-08 filter-regulator instead. The GAF300's 6000 L/min flow envelope is 2x the GAF200's 3000 L/min, so you can size up with confidence.
Quick checklist
- ✓ Body size for your peak flow (1/4" 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 GAFR300-08 filter-regulator as your air-prep needs grow.
Airtac GAF Filter GAF300N08AJ FAQ
This AirTAC filter uses a 40 um HDPE element, works from 0.15-0.9 MPa (20-130 psi), has a proof pressure of 1.5 MPa (215 psi), and operates from -5 to 70 C. Its drain bowl holds 60 cc and the unit weighs 360 g, with a flow curve plotted to 6000 L/min.
The A code means an automatic drain that expels condensate without manual intervention, ideal for wet lines. The J code omits the mounting bracket, so you must use a panel mount or an existing bracket, rather than supporting the 360 g unit from the tubing.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
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