The AirTAC GFR30008MJC2WTK AirTAC Filter Regulator NPT1/4 5um 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 PT1/4" 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 GFR300 series combines filtration and pressure regulation in a single AirTAC body: compressed air passes a 5 um element that strips water and particulate, then a standard regulator sets downstream pressure anywhere in the 0.05-0.9 MPa (7-130 psi) range. This unit is the 300 size with a 1/4 in NPT port, manual drain, an external round gauge with psi scale, and a reverse/check valve fitted; it is supplied without a mounting bracket. The bowl is polycarbonate (PC), maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, PT as the standard thread and G or NPT as catalogue options, 40 um standard or 5 um (W) filtration, differential-pressure, automatic or manual drains, and embedded square or external round gauges in MPa, psi or bar scales. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application on request.
| Model | GFR30008MJC2WTK AirTAC Filter Regulator NPT1/4 5um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (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. |
|---|---|
| 08 | Port size PT1/4". 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 · PT1/4" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Filtered, regulated air for clamp and tool-change cylinders on a CNC machining cell: the 5 um element guards fine-seal components, and the round psi gauge makes setpoint checks quick at the machine.
Regulated air for stopper, pusher and divert cylinders on a bottling or packaging conveyor, with the fitted reverse/check valve in line for reverse-flow protection and the manual drain suited to supervised shifts.
Clean, regulated air for sample-handling grippers and small pneumatic valves on lab automation benches, where the 5 um grade and a round psi gauge suit a supervised, instrument-dense environment.
Step through the real choices: size 200 to 600 sets the port and flow step (this 300 unit carries 1/4 in NPT). Drain type matters - manual (this unit) needs periodic hand draining and widens the regulation range to 0.05-0.9 MPa (7-130 psi), while automatic and differential-pressure drains suit unattended lines but regulate 0.15-0.9 MPa (20-130 psi). Filter grade is 40 um standard or 5 um (W) for finer protection of downstream components. Gauges: the embedded square gauge is standard, with an external round gauge optional in MPa, psi or bar scales - this unit has the round gauge with psi scale. Thread is PT as standard with G and NPT as catalogue options, and brackets are optional. 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 GFR series as curves, not a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the datasheet flow data for this 1/4 in NPT, 5 um configuration on request.
Manual drain (code M) means the bowl is drained periodically by hand, and it also widens the regulator range to 0.05-0.9 MPa (7-130 psi), versus 0.15-0.9 MPa (20-130 psi) with automatic or differential-pressure drains. Maximum inlet pressure is 1.0 MPa (145 psi), and the bowl is polycarbonate (PC).
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.