
The AirTAC Airtac GAF Filter GAF300N15A 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 1/2" ports and a 60 cc drain bowl. It is a filter only — it does not regulate or set pressure.
The GAF300N15A 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 protects downstream valves and tools from contamination without regulating pressure.
This model uses a 1/2in port, a 40 um filter element, and an automatic drain that clears condensate without manual attention. Its 360 g body places it in the mid-size class, and the nylon bowl suits environments where a transparent polycarbonate bowl is not preferred.
| Model | Airtac GAF Filter GAF300N15A |
|---|---|
| Series | GAF300 air filter |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Bowl material | Nylon |
| Drain type | Automatic drain |
| Bracket | Included |
| 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. |
|---|---|
| N | Bowl material: Nylon. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 15 | Port size 1/2". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| A | Drain: Automatic drain. |
| (blank) | Mounting bracket included. |
| (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 GAFR300-15 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 · 1/2" · curve to 6000 L/min |
|---|---|
| One size down | GAF200 |
| One size up | GAF400 (curve to 8000 L/min) |
| Add regulation | GAFR300-15 (filter + regulator) |
Feed a 1/2in line supplying a CNC machine's pneumatic clamps and tool changers, where the automatic drain keeps the bowl clear during long unattended runs.
Protect a multi-station assembly bench with several pneumatic actuators, using the 60 cc bowl to collect water and debris from the supply line.
Install at the take-off point of a branch feeding a small production cell, where the 1/2in port matches common distribution piping and the filter guards downstream equipment.
Choose the GAF300 body when your line needs 1/4in to 1/2in ports and a 60 cc drain bowl. The nylon bowl is a build choice; confirm compatibility with your environment. The automatic drain suits wet or unattended lines, while the included bracket simplifies mounting. The 40 um element handles general shop air; select the W version for 5 um filtration. PT threads are standard for this model. If you need pressure control, use the matching GAFR300-15 filter-regulator instead. The GAF300's 6000 L/min flow envelope is 2x the GAF200's 3000 L/min, so you can size up when demand grows.
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 GAFR300-15 filter-regulator as your air-prep needs grow.
The GAF300N15A is a filter-only unit with a 40 um HDPE element, a 1/2in PT port, and a 60 cc nylon drain bowl. 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 weighs 360 g and its flow curve is plotted to 6000 L/min.
The automatic drain opens by itself to expel accumulated condensate, so you do not need to manually operate a drain valve. It is ideal for wet supply lines or installations where regular maintenance access is difficult. The unit still filters water and solids only; it does not regulate pressure.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.