The AirTAC GFR300C15MF2W AirTAC Filter Regulator 1/2 in PT 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 GFR300C15MF2W is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This configuration is size 300 with a 1/2 in PT port, filters to 5 um (the fine grade in place of the standard 40 um), drains by hand through a manual drain, and carries the embedded square gauge scaled in psi. The regulator adjusts from 0.05 to 0.9 MPa (7-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing). The bowl on this unit is metal, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in up to 1 in, and each size can be specified with a different drain type, filter grade, gauge scale (MPa, psi or bar), thread (PT standard, with G/BSPP and NPT as catalogue options) and bracket choice. Because AirTAC publishes flow as curves rather than a single rated figure, we confirm the datasheet and flow figures for your application on request.
| Model | GFR300C15MF2W AirTAC Filter Regulator 1/2 in PT |
|---|---|
| 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) |
Filtered, regulated air to pneumatic clamps, tool-change cylinders and chip-blowing nozzles on a machining centre, with the 5 um element protecting fine valves from particulate and the square psi gauge giving operators a local setpoint readout.
Steady regulated pressure for the stopper, filler and case-packing cylinders along a bottling line, with the manual drain cleared during scheduled changeover and the 1/2 in PT port matching the line's main air drop.
Clean, pressure-stable air to spray guns and air tools in a refinish booth, with the 5 um grade and metal bowl suiting a point-of-use position where the regulator setpoint is checked on the square psi gauge between jobs.
Size and port are the first real choices: this unit is size 300 with a 1/2 in PT port, one of the four size steps (200/300/400/600) in the family, each with its own port options. Filter grade is a genuine decision - 40 um is the standard element, while the W code on this model selects the 5 um fine grade for downstream equipment that needs cleaner air. Drain type is another: manual drain (this unit) means the bowl is emptied by hand on a schedule, while automatic and differential-pressure drains discharge condensate without attention. Gauge scale (MPa, psi or bar), bracket and thread finish the decode. Flow is published as curves, not a single rating, so 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 GFR300 as curves rather than a single rated figure, so there is no one number we can quote honestly. Send us your required flow and working pressure and we will confirm the figures from the datasheet for this exact 1/2 in PT configuration before you order.
The M in the code selects a manual drain: condensate collected in the bowl is released by opening the drain by hand, which suits positions checked on a regular schedule. The same family can be ordered with an automatic drain or the default differential-pressure drain if you want condensate handled without attention. On this manual-drain unit the regulator adjusts from 0.05 to 0.9 MPa (7-130 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.