The AirTAC GFR300C10MJC2WG 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 GFR300C10MJC2WG is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 3/8 in G-threaded port, a 5 um filtration element, a manual-drain polycarbonate bowl and an external round pressure gauge reading in psi. The standard regulator covers a setting range of 0.05-0.9 MPa (7-130 psi), the unit accepts up to 1.0 MPa (145 psi) of inlet pressure, and it operates from -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR300 series is the size-300 member of the G-series filter-regulator line, which spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, drain choices (differential-pressure, automatic or manual), 40 um standard or 5 um filtration, embedded square or external round gauges in MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as sizing curves rather than a single rating, so we confirm the datasheet figures for your application on request.
| Model | GFR300C10MJC2WG 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) |
Feeding clean, pressure-controlled air to the tool-clamp and chip-clearing circuits of a CNC machining center, where the 5 um element protects fine valves from water and swarf-carrying condensate.
Conditioning and regulating the air feeding pick-and-place and carton-sealing cylinders on a packaging conveyor, with the round psi gauge letting operators check set pressure at a glance.
Supplying filtered, regulated air to bench-top lab instruments and pneumatic actuators, where the 5 um grade and manual drain suit a supervised workspace with regular operator attention.
Choose the size and port against the flow your line needs: this unit steps up to a 3/8 in G thread within the size-300 body, and the larger 400 and 600 sizes carry more flow if 3/8 in looks marginal. The 5 um element (code W) suits points of use that see finer contamination than the 40 um standard. The manual drain means an operator opens the drain periodically, so pick automatic or differential-pressure drain if the unit sits where nobody regularly walks. The round psi gauge is fitted here; the embedded square gauge and MPa or bar scales are the alternatives. G (BSPP) thread is ordered as an option against the PT standard, and the J code means no mounting bracket is supplied, so add one if the unit will not be pipe-supported. Because flow is published as curves rather than a single rated figure, 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 this series as sizing curves, not as a single rated figure, so there is no honest one-number rating we can quote. Tell us your application and we will confirm the flow and datasheet figures for this exact configuration on request before you order.
The M code gives a manual drain: an operator opens the drain at the bottom of the polycarbonate bowl to release collected condensate, so the unit should sit somewhere accessible. The W code fits the 5 um element instead of the 40 um standard, for finer particulate removal. Automatic or differential-pressure drains and the 40 um grade are available in other GFR300 configurations.
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.