The AirTAC GFR300C08MJF2WGK 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 GFR300C08MJF2WGK is a filter regulator from the GFR300 series: it removes water and particulate from compressed air and regulates downstream pressure in one compact body. This configuration is a G1/4 (1/4 in) ported unit on a G thread (PT is the standard; G and NPT are order options), with a 5 um filter element, a manual-drain PC (polycarbonate) bowl, an embedded square gauge scaled in psi, a reverse (check) valve fitted, standard regulation and no mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, a choice of manual, automatic or differential-pressure drain, 40 um standard or 5 um (code W) filtration, gauge scales in MPa, psi or bar, and G or NPT threads to order. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR300C08MJF2WGK 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) |
Clean, regulated air to the clamping cylinders and tool-change actuators on a machining centre, with the check valve holding the set pressure if the shop supply dips.
Feeding the flap-fold and sealing-jaw cylinders on a packaging conveyor, where the 5 um element protects the small control valves from water and fine debris.
A set-pressure supply for impact wrenches and nutrunners at a manual assembly station, with the psi gauge letting operators read the tool setting at a glance.
Sizing starts with the port step: GFR300 with a G1/4 port sits mid-range in the 200/300/400/600 series, so step up or down a size if your line needs more or less air - and let us confirm the flow curves against your demand before you order. With the manual drain fitted here, the regulation range is 0.05-0.9 MPa (7-130 psi). The 5 um element (code W) suits points of use that need finer filtration than the 40 um standard, and the manual drain means an operator opens the bowl drain during routine checks instead of relying on an automatic or differential-pressure drain. The gauge is scaled in psi (MPa or bar are alternatives), the fitted check valve holds downstream pressure if supply is lost, and the J code means no bracket is included - order one if you panel-mount. This code carries a G thread; PT is the standard and NPT can be ordered.
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 filter-regulator flow as curves, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the datasheet flow for this G1/4, 5 um configuration on request before you order.
The M code fits a manual drain: an operator opens the bowl drain during routine checks, which suits installations that are visited regularly. If you would rather not rely on manual draining, the same GFR300 body is available with an automatic or differential-pressure drain on other codes - just ask us to quote the variant.
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.