The AirTAC GFR300C15MC2WGK AirTAC Filter Regulator G1/2, 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 GFR300C15MC2WGK is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This configuration is built with G1/2 (BSPP) ports, a 5 um filter element, a manual drain, a round pressure gauge reading in psi, and a reverse (check) valve that helps hold downstream pressure if the upstream supply drops. Maximum inlet pressure is 1.0 MPa (145 psi), the regulating range is 0.05-0.9 MPa (7-130 psi), and the operating temperature is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600, covering ports from 1/8 in to 1 in, with choices of drain type, filter grade, gauge style and scale, thread (PT standard; G and NPT to order), bracket and check valve. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and the sizing for your application.
| Model | GFR300C15MC2WGK AirTAC Filter Regulator G1/2, 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 supply for a CNC machining cell: the 5 um element and steady regulated pressure feed tool clamps and pneumatic actuators, while the check valve helps hold the circuit if shop supply dips.
Regulated air for the carton-sealing and pick-and-place cylinders on a packaging line; the manual drain lets the line operator bleed accumulated water at shift start.
Clean, regulated air to the pneumatic valves on a bottling line's filler stations, with the round psi gauge giving operators a familiar local pressure readout at the machine.
Size and port step up together: 200, 300, 400 and 600 cover 1/8 in to 1 in, so choose the size whose flow curve covers your air demand - we can check the curve against your consumption before you order. This unit is specified with a manual drain, which suits installations where an operator can bleed the bowl routinely; automatic and differential-pressure drain versions are available where that is not practical. The 5 um element (code W) is the finer choice over the standard 40 um where downstream equipment needs cleaner air. Gauge options are the embedded square gauge or an external round gauge, in MPa, psi or bar scales - this unit carries a round psi gauge. Thread is G (BSPP) here; PT is the standard and G/NPT are catalogue options to order. A mounting bracket is included, and the K code adds a reverse (check) valve. Because flow is published as curves and not a single rating, let us 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 we do not quote one number. Send us your air consumption and working pressure and we will confirm the flow from the datasheet and check the sizing for your application.
The M code specifies a manual drain: an operator opens the drain to remove accumulated water, which suits attended installations with routine checks. If the unit will run unattended, ask us about the automatic or differential-pressure drain versions of the GFR300.
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.