
The AirTAC Airtac GAF Filter GAF300C10J 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 3/8" ports and a 60 cc drain bowl. It is a filter only — it does not regulate or set pressure.
The GAF300C10J is a filter-only unit that spins incoming air to throw liquid water and solid particles into its 60 cc metal bowl, while the 40 um HDPE core traps fine grain. It protects downstream valves and tools from contamination, but it does not regulate pressure and has no gauge.
This model uses a 3/8in port and weighs 360 g, placing it in the mid-size GAF300 class. The metal bowl suits demanding environments; confirm compatibility for aggressive surroundings since no chemical data is published. Its flow curve is plotted to 6000 L/min for sizing reference.
| Model | Airtac GAF Filter GAF300C10J |
|---|---|
| Series | GAF300 air filter |
| Port size | 3/8" (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.
| 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). |
| 10 | Port size 3/8". 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 GAFR300-10 is the same filter with a built-in regulator.
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 · 3/8" · curve to 6000 L/min |
|---|---|
| One size down | GAF200 |
| One size up | GAF400 (curve to 8000 L/min) |
| Add regulation | GAFR300-10 (filter + regulator) |
Feed a 3/8in line to a CNC tool changer or clamping fixture, where the 40 um element and 60 cc bowl handle normal workshop moisture before it reaches precision valves.
Protect a laboratory air circuit with multiple small actuators; the semi-auto drain lets you manually purge the bowl during extended test cycles.
Mount this filter on a panel upstream of a pick-and-place unit, using the metal bowl for a production floor where accidental impacts are a concern.
Choose the GAF300 body for 1/4in to 1/2in lines where a 60 cc bowl balances capacity with a compact 360 g footprint. This model has a metal bowl, a semi-auto plus manual drain, and no bracket (J), so plan for panel mounting or an existing bracket. The 40 um element handles general shop air; upgrade to the W version for 5 um filtration. Port threads are PT standard. If you need pressure control, select the matching GAFR300-10 filter-regulator instead. The GAF300's 6000 L/min flow envelope is 2x the GAF200's 3000 L/min, showing the size step between these bodies.
Quick checklist
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 GAFR300-10 filter-regulator as your air-prep needs grow.
It is a filter-only unit with a 40 um HDPE element, a 60 cc metal drain bowl, and a 360 g weight. Working pressure is 0.15-0.9 MPa (20-130 psi) with a 1.5 MPa (215 psi) proof pressure. Temperature range is -5 to 70 C. The flow curve is plotted to 6000 L/min.
The J code omits the mounting bracket for installations that use an existing panel mount or frame. The C code specifies a metal bowl, which is a build choice for tougher environments; the filtering spec is identical to PC or nylon bowls, so confirm material compatibility for your specific conditions.
Genuine AirTAC parts produced by AirTAC factory.
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Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.