The AirTAC GFR300C10MJF2WT 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 AirTAC GFR300C10MJF2WT is a GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in one compact body. This configuration is sized GFR300 with 3/8 in NPT ports, carries a 5 um filter element for finer filtration than the standard 40 um grade, and drains collected condensate by hand through its manual drain. The standard regulator covers an adjustment range of 0.05-0.9 MPa (7-130 psi), the maximum inlet pressure is 1.0 MPa (145 psi), and the embedded square gauge reads in psi. Operating temperature is -5 to 70 C, non-freezing. No mounting bracket is included and no reverse-flow (check) valve is fitted on this code.
This is a genuine AirTAC part. The GFR range is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 in up to 1 in, and with choices of drain type, filter grade, gauge and scale, thread (PT standard; G and NPT as order options) and bracket. Flow for this series is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR300C10MJF2WT 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) |
Installed at the point of use on a CNC machining centre, this unit filters water and swarf-carrying particulate out of the shop air line and holds a steady set pressure to the machine's pneumatic valves and clamps.
Mounted ahead of the cylinder bank on a carton diverting conveyor, it cleans the incoming air and keeps the regulated supply stable so the divert strokes repeat consistently through the shift.
On a laboratory or production test bench, the 5 um element protects sensitive test fixtures from airborne dirt and moisture while the psi-scaled gauge lets the operator set and read the test pressure directly.
Size the unit by the port and flow step: GFR300 with 3/8 in NPT ports sits mid-range in the GFR line, which steps from 1/8 in (size 200) up to 1 in (size 600) - match the step to the air demand of the circuit rather than to the pipe alone. The real choices on this code are already made: a manual drain (simple, but it must be drained regularly; automatic and differential-pressure drains are available on other codes), a 5 um element instead of the standard 40 um, a square gauge scaled in psi, and no mounting bracket. Thread is NPT here; PT is the standard and G (BSPP) is also an order option. Because flow for this series is published as curves rather than a single rated figure, 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 number here. Tell us your application and we will confirm the flow and sizing from the datasheet on request.
This code has a manual drain: condensate collected in the bowl is released by hand, which suits installations checked as part of a routine. If the unit will be left unattended for long periods, ask about the automatic or differential-pressure drain variants of the same GFR300 size.
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.