The AirTAC GFR300C10F2WK AirTAC Filter Regulator PT3/8, 5 um is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR300C10F2WK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your setpoint in one compact body. This unit is built in size 300 with a PT3/8 port, a 5 um filter element, a differential-pressure drain, an embedded square gauge reading in psi, and a built-in reverse (check) valve that holds downstream pressure if the supply drops. Mounting bracket included; maximum inlet pressure 1.0 MPa (145 psi); operating temperature -5 to 70 C, non-freezing, with a regulation range of 0.15-0.9 MPa (20-130 psi).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, PT, G or NPT threads, 40 um or 5 um elements, manual, automatic or differential-pressure drains, and MPa, psi or bar gauge scales. AirTAC publishes flow as curves rather than a single rating, so ask us to confirm sizing figures from the datasheet for your application.
| Model | GFR300C10F2WK AirTAC Filter Regulator PT3/8, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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.
| GFR300 | G-series filter regulator, 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 — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (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. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR300 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C1 (two-unit set) |
Feeding air to solenoid valves and cylinders on an automated assembly line, where the 5 um element protects valve spools from fine contamination and the regulator holds a steady actuator pressure.
Supplying regulated air to pneumatic clamps and fixtures on a machining centre, with the built-in check valve holding clamp pressure if the main supply dips.
Conditioning air ahead of spray guns in a finishing line: the 5 um element removes water and fine particles that would spoil the finish, and the regulator sets gun supply pressure.
Match the size and port to the air demand of the circuit: this unit is size 300 with a PT3/8 port, and larger sizes carry larger ports and higher flow. The 5 um element (code W) suits circuits that need cleaner air than the 40 um standard, such as instrument and spray lines. The differential-pressure drain bleeds condensate automatically as air passes, so there is no daily manual draining; manual and automatic drains are available in the same size if you prefer. The square psi gauge is fitted as standard (external round gauge optional, MPa/psi/bar scales), the check valve is built in, and the mounting bracket is included. PT thread is the standard; G (BSPP) and NPT are order options. Flow is published as curves, not a single rated figure, so send us your demand and we will confirm sizing from the datasheet before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes GFR flow as curves rather than a single rated figure, so there is no one number we can quote here. Tell us your working pressure and air demand and we will confirm the sizing from the datasheet on request.
The W code selects the 5 um filter grade, which removes finer particles than the 40 um standard element. It suits valves, instruments and spray equipment that need cleaner air; the 40 um grade remains available in the same size if your circuit does not require the finer filtration.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.