The AirTAC GFR30010MJC2WTK AirTAC Filter Regulator NPT3/8 is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/8" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR30010MJC2WTK is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and sets downstream pressure. This configuration is built with NPT3/8 (3/8 in) ports, a 5 um filter element (the finer of the two available grades), a manual drain for the polycarbonate bowl, a round gauge reading in psi, and a reverse/check valve fitted. The standard regulator covers 0.05-0.9 MPa (7-130 psi) adjustment, and maximum inlet pressure is 1.0 MPa (145 psi). Operating temperature is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, drain types (manual, automatic or differential-pressure), 40 um or 5 um filtration, gauge styles and MPa/psi/bar scales, and G or NPT thread options. Flow is published as curves rather than a single rating, so we confirm flow and datasheet figures on request.
| Model | GFR30010MJC2WTK AirTAC Filter Regulator NPT3/8 |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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 0.05 - 0.9 MPa (7 - 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. |
|---|---|
| 10 | Port size PT3/8". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeding clean, regulated air to a machine tool's pneumatic tool-change and clamping circuits, with the 5 um element protecting directional valves from particulate and the psi gauge letting setters verify set pressure at a glance.
Conditioning air for carton-forming and case-sealing cylinders on a packaging conveyor, where the regulator holds a stable working pressure and the manual drain suits a line that is blown down at shift end.
Supplying regulated air to lab bench equipment and test rigs, where the 5 um grade and fitted check valve keep the downstream circuit clean and hold the set pressure if the supply dips.
Size 300 with 3/8 in ports suits lines that have outgrown 1/4 in air prep but do not yet need the 1/2 in step - match the size to your required flow and downstream porting. The 5 um element (code W) is the right choice where finer particulate matters, such as downstream valves or instruments; the standard grade is 40 um. The manual drain means an operator opens the bowl drain periodically - choose automatic or differential-pressure drainage if the unit sits where regular attention is not practical. The round psi gauge is fitted here; embedded square gauges with MPa/psi/bar scales are also available. Thread is NPT in this code, with PT (standard) and G also orderable, and this J-coded version ships without a mounting bracket - add one if you panel-mount. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow 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 number, so we do not quote a figure here. Tell us your line pressure, set pressure and air demand and we will confirm the flow from the datasheet for this exact model before you order.
The M in the code specifies a manual drain: an operator opens the bowl drain to expel collected water. If the unit will be mounted where regular draining is impractical, the same GFR300 body is available with automatic or differential-pressure drainage - just order the corresponding drain code.
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.