The AirTAC GFR300C10MLJC2GK AirTAC Filter Regulator G3/8 Low-Pressure 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 GFR300C10MLJC2GK is a GFR-series filter regulator: water and particulate filtration (40 um element) and pressure regulation combined in one body. This low-pressure-type unit is made for a G3/8 (3/8 in) port with G (BSPP) thread, handles a maximum inlet pressure of 1.0 MPa (145 psi) at -5 to 70 C (non-freezing), and carries a manual drain on its metal bowl. It comes with an external round gauge scaled in psi and a reverse (check) valve fitted; no mounting bracket is included.
This is a genuine AirTAC part from the GFR300 size class. The GFR family spans sizes 200 to 600 with ports from 1/8 to 1 in, plus choices of drain type, filter grade, gauge style and thread. Because AirTAC publishes flow only as curves rather than a single rating, we confirm flow and other datasheet figures on request.
| Model | GFR300C10MLJC2GK AirTAC Filter Regulator G3/8 Low-Pressure |
|---|---|
| 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) |
Supplying low, regulated air to clamping fixtures on a CNC machining centre, where the low-pressure regulator holds a gentle, steady clamp force on delicate workpieces.
Feeding filtered, low-pressure air to spray guns in a paint finishing booth, with the 40 um element and manual-drain bowl keeping water and grit out of the finish.
Running air diverters and pushers on a packaging conveyor at reduced pressure so cartons and trays are moved along the line without being crushed.
Size and port step up together: 200, 300, 400 and 600 with ports from 1/8 to 1 in - choose GFR300 with G3/8 when your line runs 3/8 in air piping. Drain: this unit is manual, so the metal bowl is emptied by opening its drain valve by hand; automatic and differential-pressure drain versions exist if hand draining does not suit the installation. Filter grade is the 40 um standard element, with a 5 um (code W) element offered where finer filtration is needed. Gauge: this configuration carries an external round gauge in psi; embedded square gauges and MPa or bar scales are alternatives. Thread: PT is the AirTAC standard and G (BSPP) is the ordered option shown here; NPT is also available. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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 GFR300 flow as curves rather than a single rated figure, so no flow number is quoted here. Send us your line pressure and air demand and we will confirm the flow and datasheet figures on request.
Manual drain means the metal bowl is emptied by opening its drain valve by hand, normally as part of a shutdown or maintenance routine. If the unit is mounted where hand access is awkward, automatic or differential-pressure drain versions are available in the same family.
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.