The AirTAC GFR300C10MJC1WT AirTAC Filter Regulator 3/8 in, 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 GFR300C10MJC1WT is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has a 3/8 in NPT port, a 5 um filter element (the finer of the two published grades), a manual drain on the polycarbonate bowl, and a round pressure gauge reading in MPa. The regulator is the standard type with an adjustment range of 0.05-0.9 MPa (7-130 psi); no reverse/check valve is fitted and no mounting bracket 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 is made in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and can be ordered with a choice of drain type, filter grade, gauge style and scale, thread (PT standard, with G and NPT as options), and bracket. Flow is published as curves rather than a single rating, so ask us to confirm sizing and any datasheet figure for your application before ordering.
| Model | GFR300C10MJC1WT AirTAC Filter Regulator 3/8 in, 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 preparation for the air feeding tool clamps and actuated fixtures on a CNC machining centre: 5 um filtration ahead of sensitive valves, with downstream pressure set by the built-in regulator.
Clean, regulated air for the pneumatic cylinders operating fill heads and capping heads on a bottling line, with the manual drain emptied during scheduled line cleaning and maintenance rounds.
Stable regulated air for the diverter and sorting gates along a parcel or carton conveyor, where the 5 um element protects the directional control valves from water and particulate carryover.
Match the size and port to the flow your line needs: this 300-size unit carries a 3/8 in NPT port, and the larger sizes step up in port and flow. Drain type is a real choice - this unit has a manual drain, which also widens the regulator adjustment range to 0.05-0.9 MPa (7-130 psi); automatic and differential-pressure drain variants adjust from 0.15-0.9 MPa (20-130 psi). Filter grade is 5 um on this code (W); 40 um is the standard grade where finer filtration is not required. The round gauge reads in MPa; an embedded square gauge and psi or bar scales are the other options. Thread is NPT here - PT is the standard and G (BSPP) is also available to order. No mounting bracket is included with this code. Because flow is published as curves and not a single rating, 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, not as a single rated figure, so we do not quote a number on the page. Send us your required flow and operating pressure and we will confirm from the datasheet whether the GFR300 at 3/8 in NPT suits your application.
The M in the code specifies a manual drain: condensate is drained by hand, which suits installations checked on a routine. It also widens the regulator adjustment range to 0.05-0.9 MPa (7-130 psi); the automatic and differential-pressure drain variants adjust from 0.15-0.9 MPa (20-130 psi).
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.