The AirTAC GFR300C10MJC2T AirTAC Filter Regulator 3/8 in NPT 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 GFR300C10MJC2T is an AirTAC GFR-series filter regulator: filtration and pressure regulation combined in a single 300-size body. It strips water and particulate from compressed air through a 40 um element, drains collected condensate by hand via its manual drain, and holds your downstream set point anywhere in the 0.05-0.9 MPa (7-130 psi) range. The port is 3/8 in NPT, maximum inlet pressure is 1.0 MPa (145 psi), operating temperature is -5 to 70 C (non-freezing), and an external round gauge reading in psi is fitted. No reverse/check valve is included.
This is a genuine AirTAC part. The GFR family runs from size 200 to 600 with ports from 1/8 to 1 in, and options across the range include automatic, manual or differential-pressure drains, a finer 5 um element (code W), embedded square or external round gauges in MPa, psi or bar scales, G (BSPP) or NPT threads, and a mounting bracket. AirTAC publishes flow as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR300C10MJC2T AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| 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 cylinders and actuators of a carton-sealing or case-packing machine, with the 3/8 in NPT port matching the machine's main air drop and the psi gauge letting operators verify set pressure at a glance.
Supplying a small pneumatic press or clamping fixture at a workbench, where the 40 um element helps keep water and swarf away from valve and cylinder seals and the regulator holds a repeatable clamping pressure.
Regulating air to diverter gates and stopper cylinders on a distribution conveyor line, with the manual drain suiting a site that purges bowls during its scheduled maintenance round.
Choices you can decode from the code itself: the 300 size steps up to 3/8 in ports for higher flow than a 200 unit - match size and port to what your line demands. Drain type matters: this unit drains manually (code M), which suits a scheduled maintenance walk-round, while automatic or differential-pressure drains suit unattended duty. The 40 um element is the standard grade; specify code W for 5 um where finer filtration is needed. The round psi gauge (C2) is fitted; embedded square gauges and MPa or bar scales are alternatives. Thread here is NPT (code T); PT is the standard thread and G (BSPP) is also an option. The J code means no mounting bracket is included - order one if you panel- or wall-mount the unit.
Because AirTAC publishes flow as curves rather than a single rated figure, we do not quote a flow number here. Send us your application details and we will confirm sizing and the full 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 GFR series as curves rather than a single rated figure, so we do not quote a number here. Send us your inlet pressure, set pressure and the cylinders or tools this unit will supply, and we will confirm the flow curve and full datasheet figures before you order.
M is the manual drain code: condensate is purged by hand, which suits attended installations on a maintenance schedule, and it gives the full 0.05-0.9 MPa (7-130 psi) regulator setting range. If the unit will run unattended, the automatic (A) or differential-pressure (no code) drains avoid manual purging - ask us to quote those variants.
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.