
The AirTAC Airtac GFR Filter Regulator GFR300C10MNK 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.
GFR300C10MNK is a genuine AirTAC GFR-series filter regulator, combining water and particulate filtration with pressure regulation in one body, size 300 with a 3/8 in PT port. This build pairs a manual drain (M) on the polycarbonate bowl with the standard 40 um element, includes the mounting bracket, omits the gauge (N), and fits a reverse (check) valve (K). With manual drain the regulating range is 0.05-0.9 MPa (7-130 psi); maximum working pressure is 1.0 MPa (145 psi) and the unit runs on compressed air at -5 to 70 C (non-freezing).
As part of the G series it sits alongside sizes 200, 300, 400 and 600 with 1/8 in to 1 in ports, PT, G (BSPP) or NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um elements, and gauge options. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for this exact code before you order.
| Model | Airtac GFR Filter Regulator GFR300C10MNK |
|---|---|
| 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 the gripper and actuator valves of a pick-and-place module, where the regulator sets the working pressure and the filter clears water and particles ahead of the control valves.
Regulated air to the diverters, pop-up rollers and stoppers of a sortation line, with the filter bowl catching condensate carried in from the main.
Supplying pneumatic clamps and pushers at an assembly station, where the operator sets line pressure once and drains the bowl as part of the housekeeping routine.
Pick the size step (200/300/400/600) to match your port and flow; the 300 with 3/8 in PT is a common choice for machine drops and single-cell supplies. The standard 40 um grade is right for general plant air; choose the W suffix for a 5 um element if the load needs finer filtration. The M manual drain suits attended installations where the bowl is bled on a routine; unattended points are better served by the automatic or differential-pressure variants. The K position adds a reverse (check) valve on this code. No gauge is fitted (N); gauge variants are available in the series. PT is the standard thread, with G and NPT as catalogue options. Flow is published as curves, not a single rating, so send us your flow requirement and we will confirm sizing 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 does not publish a single rated flow figure for this family - flow is given as performance curves. Tell us your inlet pressure and the flow your circuit needs, and we will confirm the datasheet curve and check the sizing for this exact code on request.
K indicates that a reverse (check) valve is fitted to this filter regulator. Otherwise the code decodes as size 300, 3/8 in PT port, manual drain, standard 40 um element, bracket included and no gauge.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.