Airtac GAF Filter GAF300C08J
The AirTAC Airtac GAF Filter GAF300C08J 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
- 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 GAF300C08J
The GAF300C08J is a genuine AirTAC air filter that spins incoming air to fling water droplets and solid grit into its 60 cc metal drain bowl, while the 40 um HDPE core traps fine dust. This unit cleans the air only - it has no regulator, no pressure gauge and no lubricator.
This model uses a 1/4in port, weighs 360 g, and carries a metal bowl for demanding shop environments. Its flow curve is plotted to 6000 L/min, which makes it a mid-size choice for protecting a single machine or a small bank of valves.
Airtac GAF Filter GAF300C08J Technical Specifications
| Model | Airtac GAF Filter GAF300C08J |
|---|---|
| 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 | 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 GAF300C08J
| 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". |
| (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 GAF300C08J Is Used
CNC coolant lines
Protect a CNC machine's solenoid valves from water and swarf in the compressed air supply. The 40 um element stops particles that could clog fine orifices.
Test bench air
Feed a pneumatic test fixture with clean air. The metal bowl resists knocks on a busy workbench, and the manual drain gives quick condensate checks.
Packaging line valves
Guard the valve manifold on a carton erector. The 60 cc bowl handles a shift's condensate, and the semi-auto drain clears water when the line cycles.
Is the Airtac GAF Filter GAF300C08J the Right Filter?
Choose the GAF300C08J when you need a 1/4in filter with a metal bowl and a 40 um element. The metal bowl suits rough handling, while the semi-auto and manual drains let you empty condensate on a schedule or automatically when pressure drops. The J code means no mounting bracket is included, so plan for a panel mount or use an existing bracket. For a larger line, step up to a GAF400 with its 100 cc bowl; for a smaller one, the GAF200 offers a 25 cc bowl. If you also need to set pressure, pair this with a GAR regulator or use the matching GAFR300-08 filter-regulator. The 60 cc bowl holds about 2.4x the condensate of a GAF200's 25 cc bowl, so you will drain it less often.
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 GAF300C08J FAQ
The GAF300C08J is a filter-only unit with a 40 um HDPE element and 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. It has a 60 cc drain bowl and weighs 360 g.
The J code omits the mounting bracket, so you must mount it on a panel or use an existing bracket. The metal bowl is a build choice for tougher environments, but AirTAC does not publish chemical or impact data, so confirm compatibility with your surroundings.
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.
Related AirTAC Air-Preparation Units
Request a Quote for Airtac GAF Filter GAF300C08J
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.