The AirTAC GFR300C10MJC1TK AirTAC Filter Regulator NPT3/8 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 GFR300C10MJC1TK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in one body. This configuration is a 300-size unit with a 3/8 in NPT thread, a manual-drain bowl, a 40 um standard filter element, an external round pressure gauge scaled in MPa, a built-in reverse/check valve (code K), and no mounting bracket (code J). Maximum inlet pressure is 1.0 MPa (145 psi), the working temperature range is -5 to 70 C (non-freezing), and with a manual drain the regulator set range is 0.05-0.9 MPa (7-130 psi).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options across the series include automatic or differential-pressure drains, a 5 um element (code W), embedded square or external round gauges with MPa, psi or bar scales, G (BSPP) or NPT threads, and an optional mounting bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application on request.
| Model | GFR300C10MJC1TK AirTAC Filter Regulator NPT3/8 |
|---|---|
| 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) |
Point-of-use preparation for a CNC machining cell: the unit filters water and particulate from the shop air line and regulates pressure to the machine's clamp and tool-change circuits, with the reverse/check valve fitted in this configuration.
Air preparation for the pneumatic cylinders on a carton-sealing and case-packing conveyor line: the 40 um element removes water and pipe scale ahead of the actuators while the regulator holds a stable set pressure for consistent cylinder stroking.
Supplying filtered, regulated air to diaphragm-actuated control valves on a water-treatment or chemical dosing skid, where the manual drain bowl is emptied during scheduled rounds and the MPa gauge gives a local set-pressure readout.
Choose the size and port step (200/300/400/600, 1/8 to 1 in) against the air demand of your circuit; this unit sits at 300 size with a 3/8 in NPT port. Drain type is a real choice: manual (as here, set range 0.05-0.9 MPa / 7-130 psi), automatic, or differential-pressure (set range 0.15-0.9 MPa / 20-130 psi). Filter grade is 40 um standard or 5 um with code W. Gauge options are the embedded square gauge or an external round gauge in MPa, psi or bar scales; this unit carries a round MPa gauge. Thread is PT as standard with G (BSPP) and NPT as catalogue options, and brackets are optional and not fitted here. 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. 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 rated flow number. Tell us your application and we will confirm the flow and datasheet figures for this 300-size, 3/8 in unit on request before you order.
Code M specifies a manual drain bowl, which you empty as part of routine maintenance; with a manual drain the regulator set range is 0.05-0.9 MPa (7-130 psi). Automatic (code A) and differential-pressure (blank) drains are available in the same series if you prefer draining without operator attention.
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.