The AirTAC GFR300C10LJC2GK 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 GFR300C10LJC2GK is a GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 300-size unit is built with G3/8 (BSPP) ports, a 40 um standard filter element, a differential-pressure drain and a metal bowl. It is the low-pressure (L) regulator type, fitted with an external round gauge reading in psi and a reverse/check valve (code K); no mounting bracket is included (code J). 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 GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options across the range for manual or automatic drains, a 5 um (W) element, embedded square or external round gauges with MPa, psi or bar scales, G or NPT threads, brackets and a reverse/check valve. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR300C10LJC2GK 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) |
On a pneumatic assembly press, the unit filters water and particles from the shop air and regulates a reduced, low-pressure setting for the clamp actuators, with the built-in check valve protecting the downstream circuit against reverse flow.
At a paint booth, the GFR300 cleans the compressed air supply and holds a lower working pressure for the spray guns, with the round psi gauge giving the operator a direct pressure readout at the point of use.
Feeding grippers and small cylinders on a pick-and-place electronics assembly line, the unit delivers clean, regulated low-pressure air through 3/8 inch ports without needing a separate filter and regulator in the panel.
Choose the GFR300 when your circuit calls for 3/8 inch ports at the 300-size flow band; step down to GFR200 or up to GFR400/GFR600 as your demand changes, and we will confirm exact flow against the published curves before you order. This unit is the low-pressure (L) type; if your application needs the standard setting span, order the version without the L code, and we will confirm the low-pressure range on request. The drain here is differential-pressure; automatic (A) and manual (M) drains are order options. Filtration is the 40 um standard element, with 5 um available as code W. The gauge in this code is the external round type reading psi; embedded square gauges with MPa, psi or bar scales are alternatives. Thread is G (BSPP); PT is the standard thread and NPT is an orderable option. No bracket is fitted (J); brackets are available for the family.
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. Send us your application details and we will confirm the flow curve and sizing from the datasheet before you order.
L marks the low-pressure regulator type. This unit regulates at lower settings than the standard GFR300; the exact low-pressure range is not published, so ask us to confirm it from the datasheet. The rest of the code decodes as: G thread with G3/8 ports, 40 um element, differential-pressure drain, round psi gauge, reverse/check valve fitted, and no mounting bracket.
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.