The AirTAC GFR300C10MLF2 AirTAC Filter Regulator 3/8 in. PT 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 GFR300C10MLF2 is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This unit is built on the GFR300 size with a 3/8 in. PT port and is the low-pressure (L) regulator type, intended for circuits that run at reduced set pressures. It carries a 40 um filter element, a metal bowl with a manual drain, an embedded square gauge scaled in psi, and a mounting bracket. 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 GFR300 family spans sizes 200, 300, 400 and 600 with ports from 1/8 in. to 1 in., and options across the series include automatic or differential-pressure draining, a 5 um element (code W), gauge scales in MPa, psi or bar, an external round gauge, G (BSPP) or NPT threads, and a check valve. Because AirTAC publishes flow only as curves rather than a single rated figure, we confirm flow and datasheet figures for your application on request.
| Model | GFR300C10MLF2 AirTAC Filter Regulator 3/8 in. PT |
|---|---|
| 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) |
Filtered, regulated air at a low set point feeding the clamping cylinders on a machining fixture, with the manual drain emptied during scheduled shift checks.
Conditioning the air supply to spray guns in a finishing booth: water and particles dropped out at the 40 um element while pressure is held at a low, stable setting.
A laboratory test bench that needs clean air at reduced, repeatable pressures, with the embedded square psi gauge giving a direct readout of the set point.
The real choices in this family are decodable from the code. Step through sizes 200, 300, 400 and 600 to match the port and the flow your line needs - the 3/8 in. PT port on this unit suits mid-size circuits. Choose the drain: manual (this model, code M) means emptying the bowl by hand as part of routine checks, while automatic and differential-pressure drains handle condensate for you. Filter grade is 40 um as standard; specify W for the 5 um element where finer filtration matters. The embedded square gauge here reads in psi (code F2); MPa and bar scales and an external round gauge are options. Thread is PT as standard, with G (BSPP) and NPT available to order, and the mounting bracket is included. 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 GFR300 size as curves rather than a single rated figure, so there is no one number we can quote. Tell us your working pressure and air demand and we will confirm the flow from the datasheet on request.
Condensate collects in the metal bowl and you drain it by hand as part of routine maintenance. If you would rather not do that, the GFR300 family also offers automatic and differential-pressure drain versions - tell us your preference and we will confirm the equivalent code.
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.