The AirTAC GFR300C10ALJC2TK 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 GFR300C10ALJC2TK is an AirTAC GFR300 filter regulator: a 300-size unit that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has NPT3/8 ports, an automatic drain that discharges collected condensate without manual attention, the standard 40 um filter element, a metal bowl, and the low-pressure regulator type. A round gauge with a psi scale is fitted, a reverse/check valve is built in, and no mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi); operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is offered in 200, 300, 400 and 600 sizes with a choice of PT, G (BSPP) or NPT threads, automatic, manual or differential-pressure drains, 40 um or 5 um (W) elements, gauge styles and scales, and bracket options. Because flow is published as curves rather than a single rating, ask us to confirm sizing and the low-pressure set range against your application - we will send the datasheet on request.
| Model | GFR300C10ALJC2TK 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) |
Feeding clamps and swing cylinders on a fixture that holds workpieces at a reduced, closely watched line pressure, with the fitted round psi gauge giving the operator a direct reading at the machine.
Conditioning the air that drives packaging-machine actuators and diverters: the 40 um element strips water and scale before they reach valves, and the automatic drain clears condensate without daily attention.
Serving a bench drop that runs air-operated lab equipment at reduced pressure, where the low-pressure regulator type and the fitted reverse/check valve suit a gentle, closely monitored set point.
Size steps up from 200 through 600, so pick the size whose flow curve covers your air demand at your working pressure - we can check the curve with you. This unit is already configured with NPT3/8 ports, an automatic drain, the 40 um standard element (5 um is the W option), a round psi gauge and a built-in reverse/check valve. It is the low-pressure regulator type; the exact set range is not published, so confirm it with us before ordering. The thread here is NPT; PT is the standard and G (BSPP) is also an order option. No mounting bracket is included (J code), so plan your own fixing. Send us your flow and pressure requirements and we will confirm suitability from the datasheet.
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. Send us your port size, working pressure and expected air demand, and we will confirm sizing against the datasheet curve on request.
This unit is the low-pressure regulator variant, so its adjustment range differs from the standard GFR300 and the exact figure is not published in the material we hold. Maximum inlet pressure is still 1.0 MPa (145 psi). Tell us your target downstream pressure and we will confirm suitability from the datasheet before you order.
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.