Airtac GAF Filter GAF20008AJ
The AirTAC Airtac GAF Filter GAF20008AJ 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 25 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 bowl25 cc
- Weight200 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 GAF20008AJ
The GAF20008AJ is a genuine AirTAC air filter that spins incoming air to throw liquid water and solid particles into its 25 cc drain bowl, while the HDPE core traps fine grain. This is a filter only - it has no regulator, no pressure gauge, and no adjusting knob, so it cleans the air but never sets or controls pressure.
This model uses a 1/4in port, a 40 um filter element, and an automatic drain that clears condensate without manual attention. Weighing just 200 g, it belongs to the smallest GAF size class, so it suits a single valve or small jig rather than a machine-wide header.
Airtac GAF Filter GAF20008AJ Technical Specifications
| Model | Airtac GAF Filter GAF20008AJ |
|---|---|
| Series | GAF200 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 | 25 cc |
| Element | HDPE filter core |
| Weight | 200 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 GAFR200 filter-regulator.
Model Code: Airtac GAF Filter GAF20008AJ
| GAF200 | GA200 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 06 = 1/8", 08 = 1/4". |
| 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 GAFR200-08 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 | GAF200 · 1/4" · curve to 3000 L/min |
|---|---|
| One size up | GAF300 (curve to 6000 L/min) |
| Add regulation | GAFR200-08 (filter + regulator) |
Where the Airtac GAF Filter GAF20008AJ Is Used
Single valve protection
Mount this filter ahead of one solenoid valve on a compact fixture. The 1/4in port matches small-bore tubing, and the automatic drain keeps the bowl from flooding during long automated runs.
Bench pneumatics
Use it on a workbench air line feeding a hand tool or a small cylinder. At 200 g it is light enough for a panel mount, and the 40 um element handles typical shop air without frequent service.
Prototype test rig
Fit this filter before a pressure sensor or a precision valve on a test setup. The diversion structure removes water and solids first, so downstream components see cleaner air during validation.
Is the Airtac GAF Filter GAF20008AJ the Right Filter?
Choose the GAF200 body when your line is 1/8in or 1/4in and your flow demand stays within the 3000 L/min curve envelope. The PC bowl is the standard build for this model, while the automatic drain (A) suits unattended or wet lines where manual draining is impractical. This version omits the mounting bracket (J), so plan for a panel mount or an existing bracket, and match your fittings to the PT port thread. The 40 um element handles general workshop air; step up to the W version if you need 5 um filtration for finer protection. If the line also needs a set pressure, use the matching GAFR200-08 filter-regulator instead. The 25 cc bowl holds about 2.4x less condensate than the GAF300's 60 cc bowl, so expect more frequent draining on this smaller body.
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 GAFR200
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 25 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 200 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 GAFR200-08 filter-regulator as your air-prep needs grow.
Airtac GAF Filter GAF20008AJ FAQ
This AirTAC air filter has a 40 um HDPE element, a working pressure range of 0.15-0.9 MPa (20-130 psi), a proof pressure of 1.5 MPa (215 psi), and a temperature range of -5 to 70 C. Its drain bowl holds 25 cc, and the unit weighs 200 g. The port is 1/4in with PT thread, and the drain is automatic.
The A code means an automatic drain, which purges condensate by itself - ideal for wet or unattended lines where a manual valve would be forgotten. The J code omits the mounting bracket, so you must provide a panel mount or reuse an existing bracket. This is a filter only, so it does not regulate pressure; for that, choose the GAFR200-08.
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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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