The AirTAC GFR300C10MJF2WGK AirTAC Filter Regulator G3/8, 5 um 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 GFR300C10MJF2WGK is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady, all in a single body. This configuration is built around a G3/8 (BSPP) port, a 5 um filter element and a manual drain on a metal bowl, so collected moisture is released by hand as part of routine checks rather than by an automatic mechanism. The regulator adjusts from 0.05 to 0.9 MPa (7 to 130 psi), maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature is -5 to 70 C (non-freezing). A square pressure gauge with a psi scale is fitted, a reverse/check valve is included, and no mounting bracket is supplied with this code.
It is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port options from 1/8 to 1 inch, and choices for drain type (differential-pressure, automatic or manual), filter grade (40 um standard or 5 um), gauge type and scale (MPa, psi or bar), thread (PT is the standard, with G and NPT as order options) and bracket. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR300C10MJF2WGK AirTAC Filter Regulator G3/8, 5 um |
|---|---|
| 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) |
Point-of-use air preparation for a CNC machining centre: the 5 um element takes water and fine particulate out of the supply before it reaches tool-change and clamping actuators, while the regulator holds a steady setting on the machine's air manifold.
Mounted at the air drop to a carton-sealing or wrapping machine, the unit filters and regulates the supply feeding the cylinder-driven sealing heads, with the psi gauge letting line staff verify the setting at a glance.
On a bottling line, the filter regulator conditions the air driving gripper and capper cylinders; the manual drain suits a station an operator visits each shift, and the check valve holds the downstream circuit if supply pressure dips.
Choose the size by the port step and the flow your line needs: 300 sits mid-range in the family, and moving up a size gives a larger port and more flow capacity. Drain type is a real decision on this family - this unit has a manual drain, which suits attended installations where an operator blows down the bowl; select automatic or differential-pressure drain if the unit will be hard to reach. The 5 um element fitted here is the finer of the two published grades (40 um is the standard). The square gauge reads in psi, and MPa or bar scales are available; an external round gauge is the alternative. The thread on this model is G (BSPP); PT is the standard thread and NPT is an order option, and a mounting bracket can be added if needed. 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 flow for the GFR300 as curves rather than a single rated figure, so there is no one number we can honestly quote. Send us your required flow and working pressure and we will confirm the figures from the datasheet for this exact configuration before you order.
This model is coded M for a manual drain: moisture collected in the metal bowl is released by hand, which suits attended installations on a regular walk-round. AirTAC offers automatic and differential-pressure drains in the same GFR family, so we can quote an alternative code if the unit will be mounted somewhere hard to reach.
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.