The AirTAC GFR300C10MC2GK AirTAC Filter Regulator G3/8, Manual Drain 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 GFR300C10MC2GK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This 300-size unit is built with a G3/8 (BSPP) port, a manual drain bowl, the standard 40 um filter element, a round pressure gauge reading in psi, a built-in reverse/check valve, and a mounting bracket. The manual drain means an operator opens the bowl drain to discharge collected condensate, and the check valve holds downstream pressure if upstream supply is lost. Maximum inlet pressure is 1.0 MPa (145 psi), the regulating range is 0.05-0.9 MPa (7-130 psi), and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR filter-regulator family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and is available with automatic, manual or differential-pressure drains, a 5 um (code W) or 40 um element, square or round gauges in MPa, psi or bar scales, a low-pressure regulator type, and a reverse/check valve. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the flow and datasheet figures for your application before you order.
| Model | GFR300C10MC2GK AirTAC Filter Regulator G3/8, Manual Drain |
|---|---|
| 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 tool-clamp and chip-clearing cylinders on a CNC machining centre, where the 40 um element strips water and swarf-laden condensate and the regulator holds a steady setting at the machine.
Supplying the taping and flap-folding cylinders on a carton-sealing machine, with the check valve holding the set pressure if the plant air main dips during shift changeover.
Conditioning the air feeding grippers and actuated valves on a laboratory sample-handling system, where the psi-scaled gauge lets technicians read and log the setting directly.
Size and port: the 300 size carries a 3/8 port; step up to 400 or 600 for larger air demand, or down to 200 for compact lines. Drain: this unit is manual drain, which suits installations where an operator is present regularly; choose automatic drain for unattended duty and differential-pressure drain where you want discharge tied to the pressure drop across the element. Filter grade: 40 um is the standard element here; specify the W option for 5 um finer filtration. Gauge: this configuration carries a round gauge with a psi scale; square gauges and MPa or bar scales are orderable. Thread: PT is the standard thread, with G (BSPP) and NPT as order options - this unit is specified G. Bracket is included. Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing against the flow curve 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 rather than a single rated figure, so we do not quote one number. Tell us your inlet pressure, set pressure and air demand, and we will confirm the flow from the datasheet curve for this 300-size, G3/8 unit before you order.
This configuration carries the M drain code, so condensate collected in the bowl is discharged by hand - a good fit where the unit is checked daily. If the installation runs unattended, the same GFR300 body is available with an automatic drain (code A) or the default differential-pressure drain; ask us to quote the variant.
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.