The AirTAC GFR300C10MC2 AirTAC Filter Regulator PT3/8 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 GFR300C10MC2 is a size 300 filter regulator that removes water and particulate from compressed air and sets downstream pressure in a single body. This configuration has a PT3/8 (3/8 in) port, a manual drain bowl, a 40 um standard filter element, and a round pressure gauge reading in psi. The standard regulator covers an adjustment range of 0.05-0.9 MPa (7-130 psi) with manual drain, and maximum inlet pressure is 1.0 MPa (145 psi). Operating temperature is -5 to 70 C (non-freezing), and the size 300 bowl is polycarbonate (PC).
This is a genuine AirTAC part. The GFR range is offered in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, thread options PT (standard), G (BSPP) and NPT, manual, automatic or differential-pressure drains, 40 um or 5 um (W) filter grades, square or round gauges with MPa, psi or bar scales, and an optional reverse/check valve (K). Flow is published as curves rather than a single rated figure, so we confirm flow and datasheet figures on request.
| Model | GFR300C10MC2 AirTAC Filter Regulator PT3/8 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) |
Installed on the 3/8 inch air feed to a workshop pneumatic press, cleaning the incoming air of water and swarf and holding a set working pressure at the press valve. The manual drain is bled at shift start where an operator is already present.
Mounted ahead of the valve manifold on a cartoning or wrapping machine, giving the machine a filtered, regulated air supply at the pressure the cylinder circuit was set up for. The psi gauge lets maintenance check setting at a glance.
Feeding the air cylinders that raise diverters and stoppers on a conveyor line, keeping dust and condensed water out of the cylinders while regulating supply pressure for consistent gate action.
Size 300 with a PT3/8 port suits lines running 3/8 inch air piping; step up to size 400 or 600, or down to 200, to match the port and flow path of the application. Choose the drain to suit access: manual drain (this unit) needs periodic bleeding by an operator, automatic drain suits unattended points, and differential-pressure drain is the catalogue default. The 40 um element is the standard grade; specify 5 um (code W) where finer particulate removal is needed. This unit carries a round gauge with a psi scale; square gauges and MPa or bar scales are alternatives. PT is the standard thread and G (BSPP) or NPT are order options; a mounting bracket is included.
Because flow is published as curves and not a single rating, ask us to 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 GFR series as curves rather than a single rated figure, so we do not quote a rated flow number. Tell us your application and we will confirm the flow and datasheet figures for this size 300, PT3/8 unit on request before you order.
The M in the code specifies a manual drain bowl, which an operator bleeds periodically. If the installation is unattended, the same GFR300 body is available with an automatic drain (code A) or the differential-pressure drain (blank), and the regulation range differs by drain type: 0.05-0.9 MPa (7-130 psi) with manual drain, 0.15-0.9 MPa (20-130 psi) with automatic or differential-pressure drain.
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.