The AirTAC GFR300C10MC2WK AirTAC Filter Regulator PT3/8, 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 GFR300C10MC2WK is an AirTAC GFR300 filter regulator: a 5 um filter element and a pressure regulator combined in a single body, sized for a PT3/8 (3/8 in) port. This configuration carries a manual drain, a round pressure gauge scaled in psi, a reverse (check) valve and a mounting bracket. The polycarbonate bowl lets you see the condensate level at a glance, and the setpoint is adjusted across 0.05-0.9 MPa (7-130 psi). Maximum inlet pressure is 1.0 MPa (145 psi); operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and is available with 40 um or 5 um filtration, manual, automatic or differential-pressure drains, embedded square or external round gauges in MPa, psi or bar scales, G (BSPP) or NPT threads in place of the PT standard, and an optional check valve. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR300C10MC2WK AirTAC Filter Regulator PT3/8, 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) |
Feeding impact drivers and nut runners on a trim line: the 5 um element strips water and swarf from the drop leg while the regulator holds a fixed setpoint for repeatable tool work.
Supplying tape heads and clamp cylinders on a case-packer line: the fitted check valve holds the downstream circuit if supply dips, and the psi gauge gives operators a visible setpoint at the machine.
Regulating clean air to bench-mounted leak and pressure-test rigs: the 5 um grade protects sensitive test couplings, and the manual drain suits a supervised, attended bench.
Choose the size by port and demand: this is size 300 with a PT3/8 port; the 200, 400 and 600 sizes step port and flow capacity down or up. Drain type matters: manual (this unit) suits accessible, attended installations and allows the widest 0.05-0.9 MPa (7-130 psi) regulation range, while automatic and differential-pressure drains (0.15-0.9 MPa / 20-130 psi range) suit unattended or hard-to-reach spots. Filtration is 5 um here (code W) where finer protection is needed; 40 um is the standard grade. The embedded square gauge is the standard fitting, and this configuration carries an external round gauge scaled in psi; MPa and bar scales are options. Thread is PT as standard, with G (BSPP) and NPT as order options, and a bracket is included. Because flow is published as curves rather than 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 this series as curves, not as a single rated figure, so we do not quote a number. Send us your inlet pressure and the flow your application needs, and we will confirm the sizing from the datasheet on request.
The M code fits a manual drain: condensate is released by hand, which suits accessible, regularly attended installations and gives the widest regulation range of 0.05-0.9 MPa (7-130 psi). Automatic and differential-pressure drains are available on other GFR codes for unattended sites, with a 0.15-0.9 MPa (20-130 psi) range.
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.