The AirTAC GFR300C10LF2 AirTAC Filter Regulator 3/8 in PT Low-Pressure 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 GFR300C10LF2 is an AirTAC GFR-series filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure at your setpoint. This size-300 unit is threaded PT3/8 (3/8 in), is the low-pressure regulator type, and carries the standard 40 um filter element. The drain is differential-pressure, so collected condensate is discharged automatically whenever the pressure differential across the element is high enough - no daily manual draining. A square pressure gauge scaled in psi is fitted so the setpoint can be read and adjusted directly, and the unit includes a mounting bracket for panel or wall fixing.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and with options including a 5 um element (code W), manual or automatic drains, alternative gauge scales, G or NPT threads, and a reverse/check valve. Flow is published as curves rather than a single rated figure, so ask us to confirm the flow or datasheet figures for your application before ordering.
| Model | GFR300C10LF2 AirTAC Filter Regulator 3/8 in PT Low-Pressure |
|---|---|
| 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, pressure-reduced air to a bench pneumatic press or clamping fixture, where the low-pressure regulator type holds a gentle, repeatable setpoint on the work stroke.
Conditioning the 3/8 in air drop that serves sealing jaws and carton-closing cylinders on a packaging line, with the differential-pressure drain keeping condensate off the valves.
Providing clean, regulated air at a take-off point on a factory distribution main, with the psi-scaled gauge letting maintenance staff verify the setpoint at a glance.
Start with the port step: this unit is size 300 with a 3/8 in PT port; step up to size 400 or 600 if the line needs more capacity, or down to 200 for compact circuits. Because it is the low-pressure type, it suits circuits that must hold a reduced setpoint; we confirm the exact adjustment range from the datasheet on request. The 40 um element is the standard grade - choose the 5 um W-code variant if downstream valves or instruments need finer filtration. The fitted square gauge reads in psi; MPa or bar scales and an external round gauge are alternatives. PT is the standard thread, with G (BSPP) and NPT available as order options. A bracket is included; a reverse/check valve is not fitted on this code. Flow is published as curves, not a single rating, so send us your application conditions and we will confirm sizing 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, not as a single rated number, so we do not quote a figure here. Send us your line pressure, setpoint and expected air demand and we will confirm the flow from the datasheet on request before you order.
The L in the code marks the low-pressure regulator variant, intended for circuits that hold a reduced downstream pressure. The fitted square gauge is scaled in psi so you can read the setpoint directly; the exact adjustment range for this variant is not published as a single figure, and we confirm it from the datasheet on request.
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.