The AirTAC AirTAC GFR300C10LF2WGK Filter Regulator G3/8 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 GFR300C10LF2WGK is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration carries G3/8 (BSPP) ports, the optional 5 um filter element (code W), the differential-pressure drain, the low-pressure (L) regulator type for circuits set at reduced pressures, an embedded square gauge reading in psi, a built-in reverse (check) valve (code K) and the mounting bracket. The bowl on this unit is metal. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. GFR300 is the 3/8 in size within the GFR range, which spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and family options including automatic or manual drains, the 40 um standard element, alternative gauge scales (MPa, psi, bar) and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | AirTAC GFR300C10LF2WGK Filter Regulator G3/8 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) |
Feeds spray guns on a wood-finishing line where the circuit runs at reduced set pressure. The 5 um element keeps particulate out of the gun and finish, the square psi gauge gives a clear set-point readout, and the check valve holds the downstream line if supply pressure dips.
Supplies the pneumatic tape heads and flap cylinders on a carton-sealing conveyor. Filtration and regulation in one body saves panel space at the machine, while the reverse valve helps keep the downstream circuit charged during compressor unloading.
Provides clean, regulated air to air-gauging and leak-test fixtures on a quality bench, where fine 5 um filtration protects sensitive measuring elements and the low-pressure regulator type suits circuits set well below full line pressure.
Within GFR300 the real choices are: size and port (200/300/400/600, ports from 1/8 to 1 in, stepped against the flow your line needs); drain type (differential-pressure as fitted here, automatic A, or manual M); filter grade (40 um standard or 5 um with W, as on this unit); gauge (embedded square as standard, optional external round, scales MPa/psi/bar); thread (PT standard, G or NPT to order); and bracket. This configuration adds the low-pressure regulator type and the K reverse/check valve. Flow is published as curves, not a single rating, so send us your application conditions 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 number here. Tell us your inlet pressure, set pressure and required flow, and we will confirm from the datasheet whether this GFR300, 3/8 in size suits your application before you order.
The standard GFR element is 40 um; W specifies the optional 5 um element in the same housing, giving finer particulate removal ahead of the regulator and downstream equipment. Drain choice is separate: this unit uses the differential-pressure drain, with automatic (A) and manual (M) versions available elsewhere in the family.
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.