The AirTAC GFR300C10ALF1WTK AirTAC Filter Regulator NPT3/8 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 GFR300C10ALF1WTK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built on the GFR300 size with NPT3/8 (3/8 in) ports, a 5 um filter element (code W), an automatic drain, and a metal bowl. The regulator is the low-pressure type (code L), fitted with an embedded square gauge reading in MPa (code F1), and a reverse/check valve (code K) is fitted. A mounting bracket is included. Maximum working (inlet) pressure is 1.0 MPa (145 psi), the operating temperature range is -5 to 70 C (non-freezing), and the medium is compressed air.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with ports from 1/8 to 1 in, a choice of differential-pressure, automatic or manual drain, 40 um standard or 5 um (W) filtration, square or optional external round gauges with MPa, psi or bar scales, PT (standard), G or NPT threads, and bracket options. Flow is published as curves rather than a single rated figure, so ask us to confirm flow and any other datasheet figure for your application before ordering.
| Model | GFR300C10ALF1WTK AirTAC Filter Regulator NPT3/8 |
|---|---|
| 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) |
Regulating supply pressure to the clamping cylinders on a welding fixture, where the operator sets a light clamp force and the 5 um element keeps air-line debris out of the directional valves.
Feeding filtered, regulated air to the sealing and pick-and-place cylinders on a packaging line, with the automatic drain clearing condensed water from the bowl through continuous shifts.
Supplying low-pressure regulated air to a dosing or sample-handling rig in a process lab, where the square MPa gauge gives a clear local setpoint reading and the check valve guards against backflow.
Size steps through 200, 300, 400 and 600, so pick the size whose flow curve covers your demand at your working pressure - the 300 size with 3/8 in ports sits mid-range. Drain choice matters: automatic empties the bowl without intervention, manual needs someone to open it, and the default is differential-pressure; this unit is automatic. Filtration is 5 um here (code W) against the 40 um standard - choose 5 um where downstream valves and cylinders need finer protection. The embedded square gauge on this unit reads MPa; psi and bar scales and an external round gauge are options. Thread: PT is the AirTAC standard, while G and NPT are order options - this unit is specified NPT. A bracket is included. Because flow is published as curves, not a single rating, send us your flow and pressure requirements 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 we do not quote a number here. Send us your flow demand and working pressure and we will confirm the curve and sizing against the datasheet on request.
The automatic drain (code A) ejects collected condensate from the metal bowl without manual intervention, and the L code marks the low-pressure regulator variant, intended for lower output-pressure settings. The exact adjustment range for the low-pressure type is not published in the data we hold, so confirm it with us on request before ordering.
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.