The AirTAC GFR300-10ALC2TK 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 PT3/8" ports, a automatic 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 GFR300-10ALC2TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single 300-size body with a 3/8 in NPT port. This configuration is the low-pressure type, fitted with an automatic drain that discharges collected condensate without manual attention, a 40 um standard filter element, a reverse/check valve, and a round gauge reading in psi. The polycarbonate bowl lets you see fluid level and drainage at a glance, and a mounting bracket is included for secure installation.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, an optional 5 um element (code W), embedded square or external round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Max working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm flow or any datasheet figure for your application before ordering.
| Model | GFR300-10ALC2TK AirTAC Filter Regulator NPT3/8 |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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. |
|---|---|
| 10 | Port size PT3/8". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Clean, regulated air feeding tool-clamp cylinders and pneumatic actuators on a machining centre, with the automatic drain handling condensate during unattended shifts.
A drop point on a packaging conveyor supplying diverters and clamp cylinders, where the low-pressure regulator type matches gentle set pressures and the 40 um element protects valves.
Regulated, filtered air at a vehicle-lift or tyre-cage station, with the psi gauge giving technicians a direct pressure readout and the reverse/check valve holding downstream pressure.
Size and port set the capacity envelope: this unit is size 300 with a 3/8 in NPT port, one step up from 1/4 in, so step up to size 400 if your line may grow. Because flow is published as curves and not a single rated figure, send us your application details and we will confirm sizing against the datasheet before you order. The drain choice matters in practice: automatic drain (this unit) suits unattended duty, manual drain suits supervised points, and the differential-pressure default drains on a pressure drop. Filter grade is 40 um standard here; choose the W code for 5 um where finer particulate removal is needed. This is the low-pressure (L) type, so confirm its regulation range against your set pressure with us first. The gauge is the external round type reading in psi; embedded square gauges and MPa or bar scales are alternatives. Thread is NPT here (PT is the standard; G is also an order option), and the included bracket simplifies mounting.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow 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 that is not in the datasheet. Tell us your inlet pressure, set pressure and expected demand, and we will confirm the flow from the datasheet and check the sizing against your application before you order.
The automatic drain (code A) discharges collected condensate on its own, so it suits points that run unattended; manual and differential-pressure drains are the alternatives where supervision or drain-on-drop behaviour is preferred. The L code makes this the low-pressure regulator type, intended for lower set pressures than the standard version - its exact regulation range is not published in our sheet, so confirm it with us against your set pressure 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.