
The AirTAC AirTAC GF300-15 Filter (GF30015AJW) is a genuine G-series air filter. It separates condensed water and filters particulate from the compressed-air line through a 5 µm element, with PT1/2" ports and a automatic drain. A filter does not set downstream pressure — pair it with a GR regulator, or use a GFR filter regulator, when pressure control is needed.
The GF30015AJW is a genuine AirTAC G-series air filter for compressed air only. It removes water and particulate from the line - it does not regulate pressure and does not lubricate. This configuration is size 300 with a 1/2 in PT port, fitted with a 5 um filter element for finer particulate capture than the standard 40 um grade, an automatic drain that ejects collected condensate without operator attention, and no mounting bracket.
It is a genuine AirTAC part in the G series, which spans sizes 200, 300, 400 and 600 with increasing port sizes, and drain, element-grade and bracket options. Maximum working pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing. The bowl on this size is polycarbonate. Published flow data appears as curves rather than a single rating - we confirm datasheet and sizing figures on request.
| Model | AirTAC GF300-15 Filter (GF30015AJW) |
|---|---|
| Series | GF300 air filter |
| Port size | PT1/2" (PT thread) |
| Filtering grade | 5 µm |
| Drain type | Automatic drain |
| Bracket | Supplied without bracket |
| Fluid | Compressed air |
|---|---|
| Inlet pressure | 0.15 - 1.0 MPa (22 - 145 psi) |
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Bowl material | PC |
| Feature | Low pressure loss |
Specifications follow the official AirTAC G-series air-preparation data. The inlet-pressure band is set by the drain type: automatic and differential-pressure drains run 0.15 - 1.0 MPa, a manual drain runs 0 - 0.9 MPa. Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GF300 | G-series air filter, 300 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic drain. Options are differential (blank), automatic (A) or manual (M). |
| J | Supplied without bracket. A bracket ships by default; J orders it without. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
Field order is size, port, drain, bracket, grade, thread — a blank position takes the default. Example: GF300-10AJW is a 300 body, PT3/8", automatic drain, no bracket, 5 µm element, PT thread.
A larger body carries a larger port and passes more air at the same pressure drop. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom rather than from a single rated figure. The GF600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GF300 · PT1/2" · 5 µm |
|---|---|
| One size down | GF200 |
| One size up | GF400 |
| Line order | Filter first, then regulator, then lubricator |
Installed on the shop-air drop feeding a CNC machining center, the 5 um element strips water and fine particulate before air reaches tool-change and clamping circuits.
Mounted ahead of cylinders and actuators on a cartoning or wrapping conveyor line, it protects downstream seals from condensate carried in the compressed-air main.
Fitted on the air feed to laboratory automation and analytical-instrument pneumatics, where finer 5 um filtration helps keep sensitive valves and actuators clean.
Size 300 with a 1/2 in PT port suits lines running at moderate port sizes; step up to size 400 or 600, or down to size 200, as your required flow and piping dictate. Choose the 5 um element here if finer filtration is needed; the 40 um grade is the standard alternative. The automatic drain keeps condensate off your maintenance round - pick manual or differential-pressure drain if you prefer. A bracket is optional, and G (BSPP) or T (NPT) thread variants are catalogue alternatives to PT.
Because AirTAC publishes flow as curves and not a single rated figure, ask us to confirm sizing against your application before ordering.
Quick checklist
The PC bowl must not be cleaned with solvents or exposed to synthetic oils that attack polycarbonate — wipe it with a dry cloth. A filter removes water and particulate only; it does not regulate pressure or add lubrication.
AirTAC publishes filter performance as flow curves rather than a single rated number, so no rated flow figure is quoted here. Tell us your line conditions and we will confirm the datasheet and check the sizing against your application on request.
The automatic drain ejects collected condensate by itself, which suits unattended or hard-to-reach installations, while the 5 um element captures finer particles than the standard 40 um grade. The bracketless (J) configuration is for direct mounting to the port or manifold.
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, availability and lead time — usually within 7-8 hours.