Airtac GAF Filter GAF300N10AJ
The AirTAC Airtac GAF Filter GAF300N10AJ 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.
- TypeAir filter
- Port size3/8"
- Filtering grade40 µm
- Pressure range0.15 - 0.9 MPa
- Bowl materialNylon
- 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 GAF300N10AJ
The GAF300N10AJ is a filter-only unit that spins incoming air to throw liquid water and solid particles into its 60 cc nylon bowl, while the 40 um HDPE core traps fine grain. This 3/8in model weighs 360 g and carries no regulator, gauge, or lubricator - it cleans the air but does not control pressure.
Its automatic drain (A code) discharges condensate without manual attention, and the J code means no mounting bracket is included, so plan for panel mounting or an existing bracket. The nylon bowl suits applications where a transparent PC bowl is not preferred, though confirm compatibility for aggressive environments.
Airtac GAF Filter GAF300N10AJ Technical Specifications
| Model | Airtac GAF Filter GAF300N10AJ |
|---|---|
| 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 | Nylon |
| 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 GAF300N10AJ
| 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). |
| 10 | Port size 3/8". 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 GAFR300-10 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 · 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) |
Where the Airtac GAF Filter GAF300N10AJ Is Used
CNC coolant lines
Protect a 3/8in coolant valve manifold on a machining center from water slugs and swarf that would otherwise score spool surfaces.
Packaging machine pneumatics
Feed a film-sealing station's cylinders with cleaned air, with the automatic drain handling condensate from humid plant air without daily checks.
Assembly line sensor air
Supply a bank of proximity sensors and small actuators on an automotive assembly fixture, keeping 40 um particles out of tight clearances.
Is the Airtac GAF Filter GAF300N10AJ the Right Filter?
Choose the GAF300 body for 1/4in to 1/2in lines, with the 3/8in port here serving medium-flow circuits; step down to a GAF200 (25 cc bowl, 3000 L/min curve) for compact jigs or up to a GAF400 (100 cc bowl, 8000 L/min curve) for heavier distribution. The nylon bowl is a build choice, the automatic drain suits wet or unattended lines, and the 40 um element covers general shop air while a W code would specify 5 um for finer filtration. With the J code omitting the bracket, verify your mounting method, and match PT threads to your fittings; if you also need a set pressure, use the matching GAFR300-10 filter-regulator instead. The 60 cc bowl holds 2.4x the condensate of the GAF200's 25 cc bowl, meaning fewer drain checks on this mid-size body.
Quick checklist
- ✓ Body size for your peak flow (3/8" 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 GAFR300-10 filter-regulator as your air-prep needs grow.
Airtac GAF Filter GAF300N10AJ FAQ
This filter-only unit uses a 40 um HDPE element, works from 0.15-0.9 MPa (20-130 psi), has a 1.5 MPa (215 psi) proof pressure, and operates from -5 to 70 C. The drain bowl holds 60 cc and the unit weighs 360 g, with a flow curve plotted to 6000 L/min.
The J code omits the mounting bracket, so you must use an existing bracket or panel mount. The A code specifies an automatic drain that expels condensate by itself, ideal for wet lines or unattended operation - unlike the blank drain option which includes both semi-auto and manual drains.
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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.
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Most inquiries answered within 7-8 hours.
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