The AirTAC GFR300C08MF2WG AirTAC Filter Regulator, G1/4, 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 GFR300C08MF2WG is a size 300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one compact body. This configuration is threaded G1/4 (1/4 in), carries the fine 5 um filter element, uses a manual drain on the bowl, and is fitted with an embedded square gauge reading in psi. The regulator is the standard type with an adjustment range of 0.05-0.9 MPa (7-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing). A mounting bracket is included; no reverse/check valve is fitted.
This is a genuine AirTAC part from the GFR300 series. The GFR family is available in sizes 200, 300, 400 and 600 with a choice of ports, threads (PT standard; G and NPT as order options), drain types (differential-pressure, automatic or manual), filter grades (40 um standard, 5 um optional) and gauge scales (MPa, psi or bar). Flow figures are published as curves rather than a single rating, so we confirm the datasheet and sizing for your application on request.
| Model | GFR300C08MF2WG AirTAC Filter Regulator, G1/4, 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. |
|---|---|
| C0 | 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-C0 (two-unit set) |
Point-of-use filter regulation for a CNC machine's pneumatic clamps and tool-change cylinders: the 5 um element protects the directional valves from particulate and the regulator holds a steady set pressure for consistent clamping.
Feeding the pneumatic sealing and pressing cylinders on a carton packaging line: filtered, regulated air at the station keeps actuator speed repeatable, and the manual drain suits a station serviced each shift.
Conditioning the air supply to a robot cell's gripper and end-of-arm tooling circuit: the filter regulator sits at the cell drop, the square psi gauge gives the operator a clear local reading, and the bracket simplifies panel mounting.
Start with the port size: this unit is G1/4 (1/4 in) in the size 300 body; larger sizes (400, 600) step up in port and flow capacity, so match the size step to the air demand of the circuit. Choose the drain type to suit access: manual drain (this unit) needs periodic draining by hand, while automatic and differential-pressure drains handle condensate without attention. Choose the filter grade: 40 um is the standard element and 5 um (code W, fitted here) suits finer downstream equipment. Gauge scale can be MPa, psi or bar - this unit carries the embedded square gauge in psi, with an external round gauge available as an option. Thread is PT as standard, with G and NPT as orderable options; a bracket is included on this unit. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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 flow for the GFR300 series as curves, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Tell us your application and required flow and we will confirm the correct size against the datasheet curves on request before you order.
The M in the code is the drain type: this unit has a manual drain, so condensate collected in the bowl is released by hand at intervals - the trade-off is a wider regulator adjustment range of 0.05-0.9 MPa (7-130 psi) versus 0.15-0.9 MPa on automatic or differential-pressure drain versions. The W in the code is the filter grade: a 5 um element instead of the standard 40 um, chosen to protect finer downstream components.
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.