The AirTAC GFR300C08MLJF2TK AirTAC Filter Regulator NPT1/4 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 GFR300C08MLJF2TK is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and reduces pressure downstream. This configuration is size 300 with a 1/4 in NPT port, a manual drain (you open it by hand to empty collected water), a standard 40 um filter element, and the low-pressure regulator type. A square pressure gauge is fitted with a psi scale, a reverse (check) valve is built in, the bowl is metal, and no mounting bracket is supplied. 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. The G-series filter regulator family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in; PT is the standard thread and G (BSPP) or NPT are order options. Drain type (differential-pressure, automatic or manual), 40 um or 5 um filtration, gauge type and scale, bracket and check-valve options let you match the unit to the installation. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing figures for your application.
| Model | GFR300C08MLJF2TK AirTAC Filter Regulator NPT1/4 |
|---|---|
| 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. |
|---|---|
| C0 | 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-C0 (two-unit set) |
Filtered, reduced-pressure air to directional control valves and small cylinders on a packaging machine, with a built-in check valve in the air path and the psi gauge giving a local setpoint readout.
Air preparation for diverter and stopper cylinders along a conveyor line: the 40 um element keeps debris out of the valves while the regulator holds the downstream pressure the diverters were set up with.
The low-pressure regulator type suits bench and pilot rigs that run their pneumatic section at reduced settings, with the square psi gauge letting the operator verify the setting at the rig.
Choose the size by the air demand of the circuit: sizes 200, 300, 400 and 600 step up in port and flow capacity, and this unit sits at size 300 with a 1/4 in NPT port. Because flow is published as curves rather than a single rating, send us your flow requirement and we will confirm the right size from the datasheet before you order. Drain comes as differential-pressure (default), automatic or manual - this unit is manual, so plan a routine drain check. Filtration is 40 um as standard; specify code W for 5 um where finer protection is needed. The embedded square gauge here reads in psi; MPa and bar scales, and an external round gauge, are alternatives. Thread is NPT on this unit; PT is the standard and G (BSPP) is also available to order. This is the low-pressure regulator type - its exact setting range is not published in our data, so confirm it with us - and it carries no mounting bracket, so plan your own mounting.
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 flow requirement and port size and we will confirm the figure from the datasheet before you order.
Manual drain (code M) means you open the drain by hand to empty collected water from the bowl, instead of relying on an automatic or differential-pressure drain. It suits installations that are checked regularly; if the unit sits somewhere hard to reach, ask us about the automatic-drain version of the same size.
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.