Airtac GAF Filter GAF300N08J
The AirTAC Airtac GAF Filter GAF300N08J 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
- 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 GAF300N08J
The GAF300N08J is a filter-only unit that spins incoming air to throw liquid water and solid particles into its 60 cc nylon bowl, while the HDPE element traps fine grain. It cleans the air; it does not regulate pressure and carries no gauge.
This model uses a 1/4in port, a 40 um element, and ships with both semi-auto and manual drains fitted. The nylon bowl is a build choice for the environment, and the unit weighs 360 g, so support it from a panel or frame rather than the tubing.
Airtac GAF Filter GAF300N08J Technical Specifications
| Model | Airtac GAF Filter GAF300N08J |
|---|---|
| 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 | 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 GAF300N08J
| 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". |
| (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 GAFR300-08 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 GAF300N08J Is Used
Protect a single valve
Mount this 1/4in filter ahead of one solenoid valve or a small pneumatic cylinder to keep water and rust scale out of the pilot and seals.
Bench or test rig supply
Use it on a test bench where a compact, lightweight filter feeds a single regulated zone, keeping the air clean before a separate regulator.
Portable tool station
Fit it to a mobile cart feeding one air tool, where the 60 cc bowl gives a reasonable service interval before you need to drain it.
Is the Airtac GAF Filter GAF300N08J the Right Filter?
Choose the GAF300 body for 1/4in to 1/2in lines; the 60 cc bowl holds more condensate than the GAF200's 25 cc, so you drain less often. The nylon bowl suits environments where you prefer it over PC, but confirm compatibility for aggressive surroundings. The J code means no bracket is included, so plan for panel mounting or an existing bracket. The 40 um element covers general shop air; step to the W version for 5 um filtration. The PT thread standard must match your fittings. If you also need a set pressure, use the matching GAFR300-08 filter-regulator instead. The GAF300's 6000 L/min flow envelope is double the GAF200's 3000 L/min, giving you headroom to size up.
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 GAF300N08J FAQ
It is a 40 um air filter with a 1/4in PT port. Working pressure 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.
The J code omits the mounting bracket, so you can panel-mount the filter or attach it to an existing bracket. The unit weighs 360 g, so it needs proper support rather than being held by the tubing alone.
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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