The AirTAC GFR300C08AJC2 AirTAC Filter Regulator PT1/4 Auto Drain 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 GFR300C08AJC2 is a size 300 filter regulator that removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration carries a PT1/4 (1/4 in) port, a 40 um standard filter element, and an automatic drain that expels collected condensate from the polycarbonate bowl without manual attention. The fitted round gauge reads outlet pressure in psi, the standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), and maximum inlet pressure is 1.0 MPa (145 psi). Operating temperature is -5 to 70 C (non-freezing), and no mounting bracket is included with this code.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and can be ordered with manual or differential-pressure drains, a 5 um element (code W), MPa or bar gauge scales, G (BSPP) or NPT threads, and a mounting bracket. Flow figures are published as curves rather than a single rating, so ask us to confirm sizing and datasheet details for your application on request.
| Model | GFR300C08AJC2 AirTAC Filter Regulator PT1/4 Auto Drain |
|---|---|
| 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) |
Conditioning the air fed to pick-and-place grippers and small pneumatic presses on an electronics assembly line, where the regulator holds a steady working pressure and the 40 um element strips water and debris before they reach the valves.
Supplying filtered, regulated air to cylinders, diverters and pushers on a carton or food packaging conveyor, with the automatic drain clearing condensate from the bowl during continuous shifts.
Preparing air ahead of paint spray guns in a finishing booth, keeping atomising pressure stable at the regulator while the filter stage removes water and particulate that would otherwise mar the finish.
Choose the GFR size and port step against the air consumption of the circuit: this unit is size 300 with a PT1/4 (1/4 in) port. Because flow is published as curves and not as a single rated figure, ask us to confirm the curve data against your application before ordering. Drain type is a real choice: this code has an automatic drain, while manual and differential-pressure drains are also available in the family. Filter grade is 40 um standard here, with a 5 um element (code W) offered where finer filtration is needed. The gauge on this unit reads psi; MPa and bar scales are alternatives, and an embedded square gauge is the standard style with the external round gauge as the option. Thread is PT as standard, with G (BSPP) and NPT as order options, and a mounting bracket can be added if the code calls for one.
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 GFR series as curves rather than a single rated figure, so there is no one l/min or SCFM number we can quote. Tell us your application and we will confirm the flow curve and sizing from the datasheet on request before you order.
This code carries an automatic drain, which expels collected condensate from the bowl on its own. The family also offers a manual drain, emptied by hand, and a differential-pressure drain as the default. The drain choice also affects the regulator adjustment range: with an automatic or differential-pressure drain the range is 0.15-0.9 MPa (20-130 psi), while a manual drain allows 0.05-0.9 MPa (7-130 psi).
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.