The AirTAC GFR300C10ALC2G AirTAC Filter Regulator, G3/8, Low Pressure 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 GFR300C10ALC2G is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure in a single body. This size 300 unit is threaded G3/8 (G/BSPP), fitted with an automatic drain, a 40 um filter element and a round gauge scaled in psi, and it is the low-pressure regulator version. The metal bowl collects condensate, the included bracket gives secure mounting, the maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR300 series is available in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options across the series include manual or differential-pressure drains, a 5 um filter element (code W), square embedded or round external gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR300C10ALC2G AirTAC Filter Regulator, G3/8, Low Pressure |
|---|---|
| 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) |
Filtering and regulating the air feeding sealing jaws, coding heads and pick-and-place cylinders on a packaging line, with the automatic drain clearing condensate through long production shifts.
Conditioning the supply air to a robotic weld cell so solenoid valves and weld-gun clamping cylinders receive clean, dry air at a steady, reduced set pressure.
Serving a fixture-clamping or air-table circuit run at reduced set pressures, where the low-pressure regulator version of the GFR300 is the specified configuration.
Choose the size by the port and flow your line needs: this unit is size 300 with a G3/8 port, and larger sizes carry larger ports and more flow. Drain type matters: automatic drains condensate without attention, manual needs periodic draining, and differential-pressure is the series default - this unit is automatic. The filter grade here is the 40 um standard element; specify code W for the 5 um option where finer filtration is required. Gauges can be the embedded square type or an external round gauge, scaled in MPa, psi or bar - this unit carries a round psi gauge. Thread is G here; PT is the standard and NPT is an order option. A bracket is included. Because flow is published as curves rather than a single rated figure, send us your application details 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 flow for the GFR300 series as curves, not as a single rated figure, so we do not quote a number here. Send us your application details - port size, downstream demand and working pressure - and we will confirm the flow and sizing from the datasheet on request.
The L in the code identifies the low-pressure regulator version, specified for circuits run at reduced set pressures; the exact adjustable range is not published in the summary data, so we confirm it from the datasheet on request. The C2 code means a round gauge scaled in psi is fitted - the embedded square gauge is standard, and MPa or bar scales are available as options.
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.