The AirTAC GFR300C10MF2WGK 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 AirTAC GFR300C10MF2WGK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your setpoint in one compact body. This 300-size unit is tapped G3/8 (BSPP), carries the 5 um filter element (code W) in a manual-drain bowl, and comes configured with the embedded square gauge on a psi scale, a reverse/check valve (code K) and a mounting bracket. The polycarbonate bowl on the 300 size gives a clear view of collected condensate, so the manual drain can be opened as part of routine checks. 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 spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and the catalogue options include 40 um or 5 um filtration, manual, automatic or differential-pressure drains, MPa, psi or bar gauge scales, and PT, G or NPT threads (size 600 bowls are aluminium alloy; 200/300/400 are polycarbonate). Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR300C10MF2WGK 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 prep for a machining center's pneumatic valves and tool-change cylinders: the 5 um element catches fine particles ahead of the machine's valve stack, the regulator holds the set pressure the tool changer was designed around, and the check valve helps hold downstream pressure if the supply side dips.
Feeding carton sealers and case-packer cylinders on a packaging line, where steady regulated pressure keeps stroke behavior consistent across shifts. The manual drain suits lines where an operator opens the bowl during scheduled checks, and the transparent polycarbonate bowl makes the condensate level visible at a glance.
Conditioning the air feed to a spray booth, where added oil mist would spoil finishes: this unit filters water and particulate and regulates atomizing pressure without adding lubricant. The 5 um element and set regulator pressure give the booth a stable, cleaned air supply at the gun.
Pick the size by the port and flow step: 200, 300, 400 and 600 move up through 1/8 to 1 inch ports, so choose the size whose flow curve covers your demand rather than upsizing blindly. This unit is fixed at 300 size, G3/8, with the 5 um element; the standard element is 40 um, and 5 um (code W) suits points that need finer particulate removal. Drain choice matters: manual drains need an operator to open them, while automatic (A) and differential-pressure (blank) drains handle condensate without attention - note the manual-drain regulator adjusts 0.05-0.9 MPa (7-130 psi), versus 0.15-0.9 MPa (20-130 psi) for auto and differential-pressure versions. Gauges can be ordered with MPa, psi or bar scales, the thread can be PT (standard), G or NPT, and the bracket can be omitted with code J. Because flow is published as curves, not a single rating, send us your flow and pressure requirements and we will confirm sizing against the datasheet before you order.
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 GFR series as curves, not as a single rated number, so there is no honest one-line figure to quote. Tell us your required flow and working pressure and we will confirm the sizing from the datasheet on request before you order.
The M in the code means a manual drain bowl: an operator opens it to release collected condensate. The catalogue alternatives are automatic drain (code A) and differential-pressure drain (blank). Note the regulation range differs by drain type: manual-drain units adjust 0.05-0.9 MPa (7-130 psi), while automatic and differential-pressure versions adjust 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.