The AirTAC GFR300C10LC2GK AirTAC Filter Regulator G3/8 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 AirTAC GFR300C10LC2GK is a 300-size filter regulator that removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration has a G3/8 (3/8 in) port with G (BSPP) thread, a 40 um standard filter element, a differential-pressure drain that bleeds collected condensate from the PC bowl as flow conditions change, and a reverse/check valve fitted. It is the low-pressure (L) regulator type, and an external round gauge with a psi scale is included so the set pressure can be read directly. A mounting bracket is supplied.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, a 5 um (W) filter element option, gauge style and scale options, and PT, G or NPT thread. Flow figures for this series are published as curves rather than a single rating, so ask us to confirm sizing and any datasheet figure for your application before ordering.
| Model | GFR300C10LC2GK AirTAC Filter Regulator G3/8 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) |
Filter-and-regulate the air feeding clamp cylinders on a milling or drilling fixture, holding a reduced, readable set pressure so workpieces are held consistently without over-clamping.
Condition the air feeding pick-and-place and sealing cylinders on a packaging conveyor, keeping water and debris out of the valves while the low-pressure type holds the gentle set pressure these actuators need.
Supply filtered, pressure-regulated air to spray guns or coating applicators in a finishing booth, where a low regulated set point and a visible psi gauge keep the application repeatable.
Start with the port step: this unit is size 300 with a G3/8 port; move to size 400 or 600 if the line needs a larger port, or down to 200 for compact circuits. Choose the drain to match maintenance access: differential-pressure (this unit, self-bleeding), automatic (A), or manual (M) where an operator drains the bowl on a schedule. The 40 um element is standard; specify the 5 um (W) grade only where downstream components need finer filtration. The low-pressure (L) regulator type is the right choice where the circuit runs at reduced set pressures; the exact adjustment range for the low-pressure type is not published, so confirm it with us against your set point. This unit carries a round external gauge on a psi scale (square embedded gauges and MPa or bar scales are alternatives), a reverse/check valve (K), and a mounting bracket. Thread is G (BSPP) here; PT is the standard thread and G or NPT are order options. Because flow for this series is published as curves rather than a single rated figure, send us your application details and we will confirm sizing from 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 GFR series as curves, not as a single rated figure, so we do not quote a rated flow number. Send us your application details - port size, upstream pressure and required downstream flow - and we will confirm the sizing from the datasheet on request.
L marks the low-pressure regulator type, suited to circuits that run at reduced set pressures; the exact adjustment range for the low-pressure type is not published, so confirm it with us against your set point. The unit includes an external round gauge on a psi scale so the regulated pressure can be read directly, and the reverse/check valve (K) holds the downstream setting if upstream pressure is lost.
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.