The AirTAC GFR300C10LF2W 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 AirTAC GFR300C10LF2W is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 300-size unit is fitted with a 3/8 in PT port, a 5 um filter element (the finer of the two published grades), a differential-pressure drain, and an embedded square gauge reading in psi. It is the low-pressure regulator type, intended for circuits where the regulated pressure sits below the standard type's range; the exact adjustment range for this variant is confirmed on request. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The body is metal with a polycarbonate bowl at this size (only the 600 size uses an aluminium alloy bowl), and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans four sizes (200, 300, 400, 600) with ports from 1/8 to 1 in, a choice of 40 um or 5 um filtration, differential-pressure, automatic or manual drains, standard or low-pressure regulators, gauge and scale options, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and any datasheet figure for your application before ordering.
| Model | GFR300C10LF2W 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 low-pressure regulated air to spray guns on a paint or coating line, where the 5 um element keeps water and fine grit out of the finish and the low-pressure regulator holds a gentle, stable setting.
Supplying filtered, regulated air to clamping cylinders on a CNC machining fixture, with the square psi gauge giving the operator a direct pressure readout right at the fixture.
Regulating air to diverters and pusher cylinders on a packaging conveyor, where the differential-pressure drain and 5 um element help protect downstream valves from condensate and fine dirt.
The real, decodable choices in this family are the size and port step (200/300/400/600, 1/8 to 1 in) matched to the flow your line needs; the filter grade (40 um standard, 5 um as fitted here); the drain type (differential-pressure as fitted here, or automatic or manual); the regulator type (standard or the low-pressure L type fitted here); the gauge and its scale (MPa, psi or bar); the thread (PT is the standard, with G and NPT available as order options); and the mounting bracket, which is included on this unit. Because AirTAC publishes flow as curves rather than a single rated figure, send us your application details and we will confirm sizing against 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 rather than a single rated figure, so no single flow number is quoted here. Send us your line pressure, port size and air demand, and we will confirm the flow from the datasheet for your specific application before you order.
The L code marks the low-pressure regulator variant, intended for circuits where the regulated pressure sits below what the standard type covers. The exact adjustment range for this variant is not published in the material we hold, so we confirm it on request. Everything else in the decode is standard for this code: 3/8 in PT port, 5 um filter element, differential-pressure drain, square psi gauge, and included 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.