The AirTAC GFR300C10MJC2GK AirTAC Filter Regulator G3/8 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 GFR300C10MJC2GK is an AirTAC GFR300 filter regulator: water and particulate filtration plus downstream pressure regulation in a single body. This configuration is threaded G3/8 (BSPP), keeps the standard 40 um filter element, and uses a manual drain that you open by hand to release collected condensate. A round pressure gauge with a psi scale is fitted for setting the output, a reverse/check valve is built in, and no mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the regulator adjusts from 0.05 to 0.9 MPa (7-130 psi) on this manual-drain version. The bowl on this size is polycarbonate (PC), and the unit runs on compressed air at -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options include automatic or differential-pressure drains, a 5 um element (code W), G or NPT threads, brackets, and gauges with 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 and sizing for your application.
| Model | GFR300C10MJC2GK AirTAC Filter Regulator G3/8 |
|---|---|
| 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) |
Filtering and regulating shop air to pneumatic clamps and tool-changer cylinders on a machining centre, with the manual drain emptied at shift start and the psi gauge set to the clamp circuit pressure.
Conditioning the air feeding conveyor stop-gates and carton-closing cylinders on a packaging line, keeping water and scale out of the directional valves downstream.
Supplying regulated air to instrument panels and test rigs in a lab, where the round psi gauge gives a direct local readout and the built-in check valve blocks reverse flow.
Choose the size by port and expected flow: this GFR300 carries a 3/8 in port, one step up from the 1/4 in GFR200 and below the 1/2 in GFR400. Drain type is a real decision: manual (this unit, with the widest 0.05-0.9 MPa adjustment) versus automatic or differential-pressure, which drain themselves but adjust from 0.15-0.9 MPa. The standard element is 40 um; specify code W for 5 um when downstream equipment needs finer filtration. The fitted round gauge reads in psi; the embedded square gauge and MPa or bar scales are the alternatives. Thread here is G (BSPP); PT is the standard thread and NPT is also an order option. Because flow is published as curves, not a single rating, send us your flow and pressure requirements and we will confirm sizing against the 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 GFR300 series as curves rather than a single rated figure, so we do not quote a number here. Tell us your flow and pressure conditions and we will confirm the figures from the datasheet on request.
This unit uses a manual drain: you open it by hand to release collected condensate, which suits duties checked on a schedule. Automatic and differential-pressure drains discharge on their own but limit the regulator adjustment range to 0.15-0.9 MPa (20-130 psi), while this manual-drain version adjusts from 0.05-0.9 MPa (7-130 psi).
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.