The AirTAC GFR300C10MLJF2WGK 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 GFR300C10MLJF2WGK is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air through a 5 um element and regulates downstream pressure in the same body. This configuration has a G3/8 (BSPP) port, a metal bowl with manual drain, the low-pressure regulator type, an embedded square gauge reading in psi, and a reverse (check) valve fitted. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). It is supplied without a mounting bracket.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and options include automatic, manual or differential-pressure drains, a 40 um or 5 um filter grade, gauge scales in MPa, psi or bar, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C10MLJF2WGK 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) |
On a chemical dosing skid, feed clean, regulated low-pressure air to control-valve positioners and pneumatic pilot lines, with the 5 um element helping protect sensitive instrument internals.
Supply filtered, regulated air to the low-pressure clamp and capper actuators on a bottling conveyor; the fitted check valve holds the circuit if upstream pressure dips.
Filter and regulate the air feeding spray guns and atomizing nozzles in a furniture workshop, with the psi gauge giving a familiar readout when setting gun supply pressure.
Size the unit by port and expected air demand: this one is size 300 with a G3/8 port; the smaller 200 and larger 400/600 bodies step the port and flow capacity up or down, and we can check the flow curves against your requirement. The 5 um element (code W) is the finer of the two published grades (40 um is standard); choose it where downstream equipment needs cleaner air. The manual drain means the metal bowl is emptied by hand on a routine, so it suits installations that are checked regularly; automatic and differential-pressure drains are alternatives on other variants.
Other decodable choices: the low-pressure regulator type suits circuits that run at lower set pressures (the exact range for this type is not published - confirm with us); the embedded square gauge here reads psi, with MPa or bar scales and an external round gauge available; the G (BSPP) thread is an order option, with PT as standard and NPT also available; and this configuration comes without a bracket. The fitted reverse (check) valve holds downstream pressure if the upstream supply drops. Because flow is published as curves, not a single rating, ask us to confirm sizing 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 flow for the GFR300 as curves rather than a single rated figure, so we do not quote one number. Send us your inlet pressure, set pressure and air demand and we will confirm the flow from the datasheet on request.
The M in the code is a manual drain: the metal bowl is emptied by hand on a routine, which suits installations that are checked regularly; automatic and differential-pressure drains are available on other variants. The W code selects the 5 um element, the finer of the two grades (40 um is standard) - choose 5 um where downstream equipment needs cleaner air.
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.