The AirTAC GFR300C08MLC2WGK 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 GFR300C08MLC2WGK is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a G1/4 (1/4 in) port, a 5 um filter element (the finer of the two published grades), a manual-drain metal bowl, and the low-pressure regulator type for circuits held below standard set pressures. It is fitted with an external round gauge reading in psi, a reverse/check valve (code K) that holds downstream pressure if the upstream supply dips, and a mounting bracket.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with a choice of port, thread (PT standard; G and NPT are order options), drain type, filter grade, gauge style and scale, and check-valve or bracket options. Flow is published as curves rather than a single rated figure, so send us your operating conditions and we will confirm the datasheet figures for your application on request.
| Model | GFR300C08MLC2WGK 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) |
Feeding clamp cylinders on a packaging line that must hold a reduced set pressure below the standard range; the low-pressure regulator trims the supply while the 5 um element keeps downstream pilot valves clean.
Supplying spray guns on a finishing line where the fine 5 um grade and the manual-drain bowl protect finish quality from water and particulate carryover, with the round psi gauge giving a clear set-point readout.
Regulating air to diverter and stopper cylinders on a conveyor branch, with the fitted check valve holding downstream pressure if the upstream supply dips during a shift.
Within the GFR300 size the port is fixed at G1/4 with G thread (PT is the catalogue standard; G and NPT are ordered options). The remaining decodable choices are the drain - manual here, with automatic and differential-pressure variants available - the filter grade, 40 um standard or 5 um as coded W here, the gauge (embedded square as standard, external round as fitted here, with MPa, psi or bar scales), and the low-pressure L type versus the standard regulator. A mounting bracket is included and the reverse/check valve is fitted in this code. Because AirTAC publishes flow as curves rather than a single rating, ask us to check the curves against your pressure and air demand 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 rather than a single rated figure, so we do not quote a number here. Send us your inlet pressure, set pressure and expected air demand, and we will confirm sizing against the datasheet on request before you order.
The M in the code means the metal bowl is drained by hand, which suits installations checked as part of a daily or shift routine. If the unit will run unattended, ask about GFR300 variants with automatic (code A) or differential-pressure (blank) drain when ordering.
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.