
The AirTAC Airtac GF Filter GF300C15A is a genuine G-series air filter. It separates condensed water and filters particulate from the compressed-air line through a 40 µm element, with See datasheet ports and a differential-pressure 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 GF300C15A is an AirTAC G-series air filter: it removes water and particulate from compressed air only - no pressure regulation and no lubrication. This 300-size unit has PT1/2" ports (PT is the standard thread), the standard 40 um element, and an automatic drain (code A) that purges collected condensate from the polycarbonate bowl without relying on flow to trigger it. Maximum working pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GF series runs from size 200 to 600, with ports from 1/8" to 1", 40 um standard or 5 um optional elements, differential-pressure, automatic or manual drains, G (BSPP) and NPT thread options, and a bracket included on this code. Because flow is published as curves rather than a single rating, we confirm datasheet and flow figures for your application on request.
| Model | Airtac GF Filter GF300C15A |
|---|---|
| Series | GF300 air filter |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Drain type | Differential-pressure drain |
| Bracket | Mounting bracket included |
| 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. |
|---|---|
| C1 | Port size See datasheet. This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain. Options are differential (blank), automatic (A) or manual (M). |
| (blank) | Mounting bracket included. A bracket ships by default; J orders it without. |
| (blank) | Filtering grade 40 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 · See datasheet · 40 µm |
|---|---|
| One size down | GF200 |
| One size up | GF400 |
| Line order | Filter first, then regulator, then lubricator |
Fitted on the supply feeding the pneumatic controls of loading-dock and trailer equipment, the automatic drain keeps water out of the circuit even when the equipment sits idle between shifts.
Mounted ahead of the valve island on an automated assembly cell where cylinders act in short bursts with long pauses, the automatic drain clears condensate that a flow-dependent drain would leave sitting in the bowl.
Installed on the compressed air feed to laboratory process equipment and test rigs, the 40 um element and self-purging drain give researchers clean, dry air without a daily bowl-draining routine.
Choose size 300 with 1/2" PT ports for half-inch branch lines in the G-series range; step to 400/600 for bigger mains or 200 for compact point-of-use mounting. The 40 um element is the standard filtration grade; the W version gives 5 um fine filtration for sensitive equipment. The automatic (A) drain is the right call where flow is intermittent or machines stop often, since the differential-pressure default needs flow to purge; the M manual drain suits supervised installations. PT is the standard thread with G (BSPP) and NPT as catalogue options; bracket included.
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 flow as performance curves rather than a single rated number, so there is no honest one-figure answer. Give us your working pressure and air demand and we will confirm the sizing from the datasheet curves on request before you order.
The differential-pressure drain discharges condensate only when air is flowing through the filter, so on lines that stop frequently - shift-gated cells, seasonal equipment, batch machines - water can accumulate while the line is idle. The automatic drain on this GF300C15A purges collected water independently of flow, making it the better choice for intermittent duty; the manual (M) version remains the option where an operator drains the bowl on a schedule.
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.