The AirTAC GFR300C10LF2WK AirTAC Filter Regulator PT3/8, 5 um 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 GFR300C10LF2WK is a size-300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a PT3/8 (3/8 in) PT-threaded port, a 5 um filter element (the W grade, finer than the 40 um standard), a differential-pressure drain on its metal bowl, an embedded square gauge scaled in psi, a built-in reverse/check valve, and a mounting bracket. It is the low-pressure (L) type, intended for circuits that run below the standard regulator range.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um elements, MPa, psi or bar gauge scales, and G (BSPP) or NPT threads as order options. Flow is published as curves rather than a single rating, so we confirm the datasheet figures for your application on request.
| Model | GFR300C10LF2WK AirTAC Filter Regulator PT3/8, 5 um |
|---|---|
| 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) |
Filters the shop air feeding clamp cylinders on a fixture and holds them at a reduced, low-pressure setting so delicate parts are gripped without marking, while the check valve keeps the clamp from bleeding down if supply pressure dips.
Conditions air for pick-and-place cylinders and diverters on a carton-packing conveyor: the 5 um element protects valve spools and cylinder seals, and the regulator keeps actuator speeds consistent along the line.
Supplies clean, low-pressure regulated air to gauges, transducers and test fixtures on a lab or QC bench, with the psi-scaled square gauge giving the operator a direct readout at the panel.
Size the unit by port and expected flow: this one is size 300 with a 3/8 in PT port; step up to size 400 or 600, or down to 200, if your line needs more or less air. The 5 um element (code W) suits air tools, cylinders and instruments that need cleaner air than the 40 um standard; the differential-pressure drain bleeds accumulated water automatically as air flows. The fitted square gauge reads in psi, with MPa or bar scales and an external round gauge available as alternatives. PT is the standard thread here; specify G (BSPP) or NPT when ordering if your pipework needs it. The low-pressure (L) type is the right pick for circuits set below the standard regulator range - its exact range is not published on this sheet, so confirm it with us. Because flow is published as curves and not a single rating, ask us to confirm sizing against your application before ordering.
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 GFR flow as curves rather than a single rated figure, so there is no one rated-flow number we can quote. Send us your line pressure, set pressure and expected air consumption, and we will confirm the sizing from the datasheet curves on request before you order.
The L code means this unit is the low-pressure version of the GFR300 regulator, built for circuits that run below the standard type's setting range. Its exact adjustment range is not published on the sheet we work from, so confirm the range with us on request. Everything else in the code decodes normally: 3/8 in PT port, 5 um element, differential-pressure drain, psi square gauge, check valve fitted and bracket included.
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.