The AirTAC GFR300C10AC2W AirTAC Filter Regulator 3/8" PT, 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 GFR300C10AC2W is an AirTAC GFR300 filter regulator: water and particulate filtration plus downstream pressure regulation in a single body. This configuration is built with a 3/8 inch PT thread, a 5 um filter element for finer air cleaning than the standard 40 um grade, an automatic drain that ejects collected condensate without manual attention, and a round pressure gauge reading in psi so the set pressure is visible at the unit. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing). A mounting bracket is included and the size 300 body uses a polycarbonate bowl.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um (W) filter grades, embedded square or external round gauges in MPa, psi or bar scales, and PT, G or NPT threads. Rated flow for this series is published as curves rather than a single figure, so ask us and we will confirm the datasheet and sizing figures for your application on request.
| Model | GFR300C10AC2W AirTAC Filter Regulator 3/8" PT, 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) |
Mounted at the inlet to a CNC machine's pneumatic circuit, this unit filters machining-air moisture and fine particles to 5 um and holds a steady regulated pressure for tool clamping and actuator circuits, with the psi gauge giving the setter a visible setpoint.
Ahead of spray guns and coating applicators, the 5 um element removes water and particulate that would otherwise blemish the finish, while the regulator holds the consistent supply pressure the gun manufacturer expects and the automatic drain copes with condensate through a shift.
On a packaging line where cylinders divert, clamp and eject product all day, this filter regulator cleans the shop air and keeps operating pressure stable across the line, with the automatic drain removing collected water without an operator stopping to bleed the bowl.
Choose the size and port by the air demand of the circuit rather than by pipe alone: GFR comes in sizes 200, 300, 400 and 600, stepping up in port from 1/8 to 1 inch, and this size 300 unit carries a 3/8 inch PT port. Pick the drain to suit attendance: automatic (as fitted here) suits unattended duty, manual suits periodic checks, and the differential-pressure default is the catalogue standard. Pick the element grade for the air quality the tools need - 40 um standard or 5 um (code W) as on this unit. Gauges are embedded square or external round, with MPa, psi or bar scales; this unit carries a round psi gauge. Thread is PT as standard with G (BSPP) and NPT as order options, and a bracket is included.
One honest note before you order: AirTAC publishes flow for this series as curves, not as a single rated number, so we do not quote a flow figure here. Send us your application details and we will confirm the datasheet and sizing against your required flow before you commit.
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 performance curves rather than a single rated figure, so we do not quote a flow number for this unit. Send us your application details and we will confirm the datasheet and the correct size against your required flow on request before you order.
The A in the code GFR300C10AC2W means the bowl drains itself: collected condensate is ejected automatically with no operator attention, which suits unattended or continuous duty. The GFR series is also available with a manual drain or the differential-pressure default, and the regulator adjustment range depends on the drain type - 0.15-0.9 MPa (20-130 psi) for automatic and differential-pressure drains, 0.05-0.9 MPa (7-130 psi) for manual.
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.