The AirTAC GFR300C10LC2K AirTAC Filter Regulator 3/8in 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 AirTAC GFR300C10LC2K is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size-300 unit is built with a PT3/8 port, a 40 um filter element and the differential-pressure drain that is the default for this family. The L code marks it as the low-pressure regulator type, it carries an external round gauge reading in psi, and a reverse/check valve (code K) is fitted. The polycarbonate bowl suits the 300 size, maximum working pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing). A mounting bracket is included.
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 that include automatic or manual drains, a 5 um element (code W), embedded square or external round gauges with MPa, psi or bar scales, G (BSPP) or NPT threads, and a bracket-free variant. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm sizing and any datasheet figure against your application before ordering.
| Model | GFR300C10LC2K AirTAC Filter Regulator 3/8in 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) |
Filtered, regulated air supplied to the clamping circuit of a CNC machining fixture, where the low-pressure type regulator holds a reduced setting for workholding and the check valve helps maintain the downstream circuit.
Air preparation for pick-and-place cylinders and grippers on a carton packaging line, with the 40 um element taking water and particulate out ahead of the valves and the 3/8 in PT port matching the machine's air drop.
Conditioned air to spray guns in a finishing booth, where the regulator holds the reduced atomizing pressure the guns need and the differential-pressure drain keeps condensate out of the paint line.
Start with the size and port step: GFR units come in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and this model sits at size 300 with a 3/8 in PT port. Drain type is a real choice: differential-pressure (this unit, the default), automatic (code A) or manual (code M). Filter grade is 40 um as standard here; specify code W for the 5 um element when finer filtration is needed. On the gauge side, the embedded square gauge is standard with MPa, psi or bar scales, while this configuration carries the external round gauge reading in psi. Thread is PT as standard, with G (BSPP) and NPT available as order options, and the bracket is included unless you order the J variant. The L code marks the low-pressure regulator type; its exact adjustment range is not published in our data, so confirm it with us.
One honest note on sizing: AirTAC publishes G-series flow as curves, not a single rating, so we do not quote a flow number here. Ask us to confirm the flow data for this model against your application 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 G-series flow as curves rather than a single rated figure, so we do not quote a number here. Send us your line pressure, downstream demand and port size, and we will confirm the flow data for the GFR300C10LC2K from the datasheet before you order.
The embedded square gauge is standard across the GFR family and can be ordered with MPa, psi or bar scales. This configuration (code C2) is specified with the external round gauge reading in psi. Either gauge style and scale can be selected when ordering, so tell us which your panel prefers.
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.