Airtac GAF Filter GAF300C08AJ
The AirTAC Airtac GAF Filter GAF300C08AJ 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 materialMetal
- 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 GAF300C08AJ
The GAF300C08AJ is a genuine AirTAC air filter that spins incoming air to throw liquid water and solid particles into its 60 cc metal drain bowl, while the 40 um HDPE element traps fine grain. It is a filter only - it has no regulator, no pressure gauge and no lubricator, so it cleans the air but never sets or controls pressure.
This model uses a 1/4in port and weighs 360 g, placing it in the GAF300 size class. The metal bowl and automatic drain make it a robust choice for lines where water is expected and regular manual draining is inconvenient, though you should confirm bowl compatibility for aggressive surroundings.
Airtac GAF Filter GAF300C08AJ Technical Specifications
| Model | Airtac GAF Filter GAF300C08AJ |
|---|---|
| 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 | Metal |
| 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 GAF300C08AJ
| GAF300 | GA300 series air filter — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. 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 GAF300C08AJ Is Used
Machine tool air prep
Protect a CNC machine's solenoid valves and pneumatic actuators from water and scale with this 1/4in filter, whose automatic drain keeps the 60 cc bowl from flooding during long unattended runs.
Panel-mount filter station
The J code omits the bracket, letting you bolt this 360 g filter directly to a control panel or existing frame. Its metal bowl shrugs off impacts in a busy workshop environment.
Assembly line point-of-use
Feed a single pick-and-place unit or a small clamping fixture with clean air. The 40 um element stops rust and pipe scale before they reach precision pneumatic components.
Is the Airtac GAF Filter GAF300C08AJ the Right Filter?
Choose the GAF300 body when you need 1/4in to 1/2in ports and a 60 cc drain bowl that holds about 2.4x the condensate of the GAF200's 25 cc bowl. This model has a metal bowl (C), an automatic drain (A) that clears water without attention, and no mounting bracket (J) for panel-mount installations. The 40 um element suits general-purpose filtration, while the PT port thread matches common local fittings. If you also need to set a downstream pressure, step up to the GAFR300-08 filter-regulator instead. With a 1.5 MPa proof pressure against a 0.9 MPa working maximum, the safety margin is roughly 1.67x.
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 GAF300C08AJ FAQ
This AirTAC GAF300 air filter has a 1/4in port, a 40 um filtering grade, a 60 cc drain bowl and weighs 360 g. The working pressure range is 0.15-0.9 MPa (20-130 psi), proof pressure is 1.5 MPa (215 psi), and the temperature range is -5 to 70 C. It uses an HDPE filter core and the flow curve is plotted to 6000 L/min.
The A code specifies an automatic drain. This means the 60 cc metal bowl empties itself when condensate reaches a set level, so you do not need to manually open a drain valve. This is ideal for wet lines or installations where regular maintenance access is difficult. The metal bowl (C) is a build choice; confirm compatibility for your environment.
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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