The AirTAC GFR300C08MLJF1T 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 GFR300C08MLJF1T is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This 300-size unit is configured for 1/4 in NPT ports, a 40 um filter element, a manual drain on its metal bowl, the low-pressure regulator type, and an embedded square gauge reading in MPa. No mounting bracket is fitted and no reverse (check) valve is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and can be ordered with automatic, manual or differential-pressure drains, a 5 um element (code W), psi or bar gauge scales, G or NPT threads, and a mounting bracket. Flow for this family 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 | GFR300C08MLJF1T 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) |
Supplying filtered, regulated air to pick-and-place grippers and light clamping on an assembly cell, where the low-pressure regulator type holds a gentler set pressure than a standard unit while the 40 um element keeps water and swarf out of the actuators.
Feeding hold-down air jets and light actuation on a packaging conveyor, with the 40 um element protecting the jets from condensate and dust and the manual drain emptied as part of the end-of-shift routine.
Providing clean, reduced-pressure air to test rigs and calibration benches that run below standard shop-air pressure, with the setpoint read locally on the embedded square MPa gauge.
The decodable choices on this unit are fixed by the code: 300 size with 1/4 in NPT ports, 40 um filtration, manual drain, low-pressure regulator type, square MPa gauge, and no bracket. If your circuit needs finer filtration, the 5 um W grade is an order-time alternative to the 40 um standard; psi or bar gauge scales, G or NPT threads, and a mounting bracket are also available across the family. For sizing, step up or down through the 200/300/400/600 sizes against the flow your line needs - but note that G-series flow is published as curves, not a single rating, so send us your flow and pressure requirements and we will confirm the right size 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 G-series flow as curves rather than a single rated figure, so no single number is quoted here. Send us your required flow and working pressure and we will confirm the sizing for this 1/4 in NPT filter regulator from the datasheet on request.
The M in the code specifies a manual drain: condensate is emptied by hand, which suits duties where the bowl is checked routinely. The GFR family can also be ordered with an automatic or differential-pressure drain, and the 5 um W filter grade, psi or bar gauge scales, and a mounting bracket are available as order options.
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.