The AirTAC GFR300C10AC2WT AirTAC Filter Regulator 3/8 NPT 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 GFR300C10AC2WT is a size 300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration carries a 3/8 in NPT port, a 5 um filter element (one step finer than the 40 um standard), an automatic drain that bleeds collected condensate without manual attention, a round pressure gauge reading in psi, and a metal bowl. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), the 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; no reverse/check valve is fitted.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and with choices of drain type, filter grade, gauge style and scale, thread form (PT standard, G and NPT as order options) and bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm flow and other datasheet figures against your application before ordering.
| Model | GFR300C10AC2WT AirTAC Filter Regulator 3/8 NPT 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 filtered, regulated air to the tool-clamp and tool-change cylinders and pneumatic actuators on a CNC machining center, with the 5 um element protecting the machine's directional valves from fine particulate.
Conditioning the air supply to pick-and-place cylinders and diverters on a bottling or packaging conveyor, where the automatic drain handles condensate on a line that runs unattended across shifts.
Supplying regulated air to the actuation circuits of an automotive paint booth, where the 5 um grade and a set downstream pressure keep spray equipment controls working consistently through the shift.
Size 300 with a 3/8 in port sits in the middle of the GFR range; step up to 400/600 or down to 200 depending on the flow your line needs - and because flow is published as curves rather than a single rating, ask us to confirm sizing against the application before ordering. This unit has the 5 um element (code W); the 40 um standard element suits general plant air where finer protection is not required. The automatic drain suits unattended or hard-to-reach installations; manual and differential-pressure drains are available in the family if you prefer to control blowdown. The round gauge here reads in psi; embedded square gauges and MPa or bar scales are the other catalogue choices. PT is the standard thread; G (BSPP) and NPT are order options, and this unit is specified in NPT. A bracket is included; on GR units a J code deletes it, and GR is also panel-mountable.
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 this series as curves, not as a single rated figure, so we do not quote a flow number. Tell us your application and required flow, and we will confirm the sizing from the datasheet curves on request before you order.
The A in the code sets the automatic drain, which ejects collected condensate on its own - useful where the unit is mounted out of reach or the line runs unattended (manual and differential-pressure drains are the alternatives). The W sets the 5 um element, one step finer than the 40 um standard, for applications that need finer protection of downstream valves and cylinders.
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.