
The AirTAC AirTAC GF300-08 Filter (GF30008M) 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 PT1/4" ports and a manual 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 AirTAC GF30008M is a G-series compressed-air filter only - it removes water and particulate; it does not regulate pressure or add lubricant. The M code selects the manual drain: an operator opens it to empty collected condensate, which suits attended installations and intermittent lines. Note the catalogue inlet range for the manual-drain version is 0 to 0.9 MPa (0 to 130 psi). The standard 40 um element handles general shop-air duty, the 300-size polycarbonate bowl shows the condensate level, and a mounting bracket is included. The PT1/4 (PT thread) port fits 1/4-inch branch lines; temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GF series is available in 200, 300, 400 and 600 sizes, with automatic and differential-pressure drains, a 5 um optional element, and G/NPT thread options. Flow is published as curves, not a single rating; we confirm datasheet and flow figures on request.
| Model | AirTAC GF300-08 Filter (GF30008M) |
|---|---|
| Series | GF300 air filter |
| Port size | PT1/4" (PT thread) |
| Filtering grade | 40 µm |
| Drain type | Manual drain |
| Bracket | Mounting bracket included |
| Fluid | Compressed air |
|---|---|
| Inlet pressure | 0 - 0.9 MPa (0 - 131 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. |
|---|---|
| 08 | Port size PT1/4". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual 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 · PT1/4" · 40 µm |
|---|---|
| One size down | GF200 |
| One size up | GF400 |
| Line order | Filter first, then regulator, then lubricator |
Point-of-use filtration at attended maintenance-bay drops, where the technician drains the bowl at the start of a shift before running impact wrenches and ratchets on 1/4-inch lines.
Filtering plant air feeding guide rollers and air-wipe rings on extrusion lines, with the manual drain emptied during scheduled changeovers.
Cleaning the instrument-air supply to quarter-turn pneumatic valve actuators on a process skid, where the operator drains the bowl during routine rounds.
Manual drain (M) is the right call when the filter sits where an operator walks past and the line is not permanently wet - choose A (automatic) or the blank differential-pressure drain for unattended or continuously wet duty. The 300 size with 1/4-inch PT port is the mid-small step on the 200/300/400/600 ladder; size up for larger ports and higher air demand. The standard element is 40 um; specify W for 5 um. Bracket is included here (no J code). Thread is PT as the standard, with G and NPT as catalogue options. Flow appears only as curves in the datasheet, so 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.
Flow for the GF series is published as curves in the AirTAC datasheet rather than a single rated number, so we do not quote one here. Give us your pressure and air demand and we will confirm the flow figures for your application on request.
Yes. GF units with the M manual drain are rated 0 to 0.9 MPa (0 to 130 psi) inlet, while automatic and differential-pressure drain versions carry the full 1.0 MPa (145 psi) maximum working pressure. Everything else about this 300-size, PT1/4 filter is unchanged.
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.