The AirTAC GFR300C10AJF2W AirTAC Filter Regulator PT3/8, 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 GFR300C10AJF2W is a size 300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 3/8 inch PT port, a fine 5 um filter element, an automatic drain that expels collected condensate without manual attention, an embedded square gauge reading in psi, and the standard regulator type with a 0.15-0.9 MPa (20-130 psi) adjustment range. No mounting bracket is fitted and no reverse/check valve is included.
This is a genuine AirTAC part. The GFR line spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and options for manual or differential-pressure drains, a 40 um standard element, alternate gauge styles and scales, G or NPT threads, and brackets. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C10AJF2W AirTAC Filter Regulator PT3/8, 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. |
|---|---|
| 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) |
Feeding a bank of solenoid valves on an automated assembly station: the 5 um element protects spool clearances from particulate and the regulator holds a steady set pressure to the manifold.
Supplying air to stoppers, lifts and gate cylinders along a packaging conveyor line, where the automatic drain keeps condensate out of the circuit without a daily walk-round.
A dedicated drop at a machining cell powering pneumatic clamps and workholding fixtures, with the psi gauge letting the operator read and hold the clamping pressure at the point of use.
Size 300 with a 3/8 inch PT port suits lines whose air consumption sits in the mid range of the GFR family; step up to size 400 or 600 for larger demand, or down to size 200 for compact circuits - match the size step to the flow curve, not to a single rated number. The 5 um element (code W) is the finer choice over the 40 um standard grade, appropriate where downstream valves and cylinders need cleaner air. The automatic drain suits unattended or hard-to-reach installations; manual and differential-pressure drains are the alternatives in this family. The square psi gauge is fitted as standard, and external round gauges with MPa, psi or bar scales are available. PT is the standard thread; G (BSPP) and NPT are order options. This unit ships without a bracket - add one if you want panel or surface mounting.
Because flow data is published as curves rather than a single rating, send us your application details and we will confirm sizing against 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 as curves, not as a single rated figure, so we do not quote a number here. Send us your line pressure, set pressure and air consumption and we will confirm the flow and sizing from the datasheet on request.
The W code in the model sets the finer 5 um filter grade instead of the 40 um standard element, giving cleaner air for sensitive valves and cylinders. The A code sets an automatic drain, which ejects collected condensate on its own - the family also offers manual and differential-pressure drains if you prefer those.
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.