The AirTAC GFR300C10AC1WTK AirTAC Filter Regulator NPT3/8 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 GFR300C10AC1WTK is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 300-size unit has a 3/8 in NPT port, a 5 um filter element (code W), an automatic drain, a round MPa pressure gauge, a built-in reverse/check valve and a mounting bracket. The polycarbonate bowl suits non-freezing compressed-air service from -5 to 70 C, with a maximum inlet pressure of 1.0 MPa (145 psi) and a regulating range of 0.15-0.9 MPa (20-130 psi).
GFR is AirTAC's combined filter-regulator series, offered in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, drain choices (differential-pressure, automatic or manual), 40 um standard or 5 um filtration, gauge and scale options, and PT, G or NPT threads. This is a genuine AirTAC part. Rated flow is published as curves rather than a single figure, so ask us to confirm sizing and datasheet details for your application.
| Model | GFR300C10AC1WTK AirTAC Filter Regulator NPT3/8 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) |
Mounted at the air drop feeding a punch press cylinder circuit, this unit strips water and fine particles from the shop air and holds a steady regulated pressure so the press strokes consistently through a shift.
Installed ahead of the diverters, pushers and stopper cylinders on a bottling conveyor, it delivers clean, regulated air so the 5 um element protects tight-tolerance valve spools from condensate carryover.
Fitted on the supply drop to a multi-station assembly cell with air tools and gripper circuits, the automatic drain handles condensate at the point of use while the gauge lets operators set and verify working pressure.
Size 300 with a 3/8 in NPT port is the step to pick once your line's flow demand sits in the mid range of the G-series ladder (200, 300, 400, 600). Drain type is a real choice: automatic drain (this unit) vents collected condensate without attention, while manual and differential-pressure drains suit attended or lower-duty installations. Filter grade is 5 um here (code W) for finer protection of downstream equipment, against the 40 um standard element for general service. The embedded square gauge is standard with an optional external round gauge in MPa, psi or bar scales; this unit carries the round MPa gauge. Threads are PT as standard with G (BSPP) and NPT as catalogue options; brackets can be omitted with J codes. Flow is published as curves, 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 G-series flow as curves rather than a single rated figure, so we do not quote a flow number for this unit. Tell us your application and downstream demand and we will confirm the sizing from the datasheet on request.
The A in the code specifies an automatic drain, which vents collected condensate from the bowl without anyone opening it. The catalogue alternatives are a manual drain and a differential-pressure drain (the default); choose automatic for unattended or hard-to-reach installations.
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.