Airtac GAF Filter GAF30008AJ
The AirTAC Airtac GAF Filter GAF30008AJ 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 materialPC
- 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 GAF30008AJ
The GAF30008AJ is a genuine AirTAC air filter that removes liquid water and solid particles from compressed air lines. It uses a diversion structure to spin the air, throwing contaminants into the 60 cc drain bowl while the 40 um HDPE element traps fine grain. This is a filter only - it has no regulator, no pressure gauge, and no lubricator.
This model has a 1/4in port and weighs 360 g, placing it in the GAF300 size class. The automatic drain (A) releases condensate without manual intervention, making it suitable for wet or unattended lines. The PC bowl is a build choice; confirm material compatibility for aggressive environments. The J code means no mounting bracket is included, so plan for a panel mount or existing bracket.
Airtac GAF Filter GAF30008AJ Technical Specifications
| Model | Airtac GAF Filter GAF30008AJ |
|---|---|
| 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 | PC |
| 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 GAF30008AJ
| GAF300 | GA300 series air filter — sets the port range, drain-bowl capacity and weight. |
|---|---|
| (blank) | Bowl material: PC. 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 GAF30008AJ Is Used
CNC spindle air
Protect a CNC machine's spindle air system from water and particulates. The 40 um element and automatic drain keep the air clean without requiring daily maintenance checks.
Pneumatic valve manifold
Feed a bank of solenoid valves on a production line. The 1/4in port matches common valve manifold inlets, while the 60 cc bowl handles typical condensate loads between shifts.
Packaging line actuators
Supply clean air to pneumatic actuators on a packaging machine. The automatic drain prevents water buildup in the bowl, reducing the risk of carryover into downstream cylinders.
Is the Airtac GAF Filter GAF30008AJ the Right Filter?
Choose the GAF300 body for 1/4in to 1/2in port lines needing up to 60 cc of condensate capacity. The automatic drain suits wet lines or remote locations where manual draining is impractical. The 40 um element is the general-purpose grade; upgrade to the W (5 um) element for finer filtration. The PT thread standard must match your existing fittings. The J code omits the bracket, so verify your mounting setup. 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, giving you clear headroom for system expansion.
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 GAF30008AJ FAQ
The GAF30008AJ is a filter-only unit with a 40 um filtering grade. Working pressure range is 0.15-0.9 MPa (20-130 psi), proof pressure is 1.5 MPa (215 psi), and temperature range is -5 to 70 C. The drain bowl holds 60 cc and the unit weighs 360 g. It has a 1/4in port and uses an HDPE filter core.
The A code specifies an automatic drain. This means condensate is expelled automatically when it reaches a certain level, without manual intervention. This is ideal for wet lines or installations where regular manual draining is not feasible. The J code means the mounting bracket is not included with this model.
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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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