
The AirTAC Airtac GAF Filter GAF30015AJ 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 GAF30015AJ is a genuine AirTAC air filter that spins incoming air to throw liquid water and solid particles into its 60 cc drain bowl, while the HDPE element traps fine grain. It is a filter only, with no regulator, no gauge, and no lubricator, so it cleans the air but never sets or holds pressure.
This 1/2in port model weighs 360 g and uses a 40 um element, making it a mid-size unit for protecting downstream valves and cylinders. Its automatic drain clears condensate without manual attention, and the transparent PC bowl lets you see collected water at a glance.
| Model | Airtac GAF Filter GAF30015AJ |
|---|---|
| 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 | PC |
| 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.
| GAF300 | GA300 series air filter — sets the port range, drain-bowl capacity and weight. |
|---|---|
| (blank) | Bowl material: PC. 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. |
| 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 GAFR300-15 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) |
Protect solenoid valves on a CNC machine from water and scale in the air supply, with the automatic drain handling frequent condensate without stopping production.
Mount this filter directly into an existing control panel using the J no-bracket design, saving space while cleaning air for a bank of pneumatic actuators.
Feed a clean air supply to multiple handheld tools at a workbench, with the 60 cc bowl reducing how often an operator must empty collected water.
Choose the GAF30015AJ when you need a 1/2in port filter with an automatic drain and no mounting bracket, ideal for panel mounting or existing brackets. The 40 um element suits general-purpose lines; step up to a W code for 5 um filtration if you have precision valves. The PC bowl is the standard build, while C metal or N nylon bowls are available on other codes. This unit uses PT thread, so match your fittings accordingly. If you also need pressure control, the matching GAFR300-15 adds a regulator, but this GAF alone does not regulate. The GAF300's 60 cc bowl holds about 2.4x the condensate of a GAF200's 25 cc, meaning fewer drain checks on a mid-size line.
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.
This AirTAC filter uses a 40 um HDPE element, works from 0.15-0.9 MPa (20-130 psi), has a proof pressure of 1.5 MPa (215 psi), operates from -5 to 70 C, has a 60 cc drain bowl, and weighs 360 g. It is a filter only with no regulator or gauge.
The A means it has an automatic drain that expels condensate without manual operation, ideal for wet or unattended lines. The J means the mounting bracket is omitted, so you can panel-mount the filter or attach it to an existing bracket you already have.
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.