The AirTAC GFR300C10AC1WT 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 AirTAC GFR300C10AC1WT is a 300-size filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is threaded 3/8 in NPT, carries the fine 5 um filter element (code W), drains condensate automatically, and is fitted with the round pressure gauge on the MPa scale. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi). Operating temperature is -5 to 70 C, non-freezing. The polycarbonate bowl keeps the condensate visible, and the mounting bracket is included.
This is a genuine AirTAC part. The GFR family is published in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 inch, a choice of 40 um standard or 5 um fine filtration, differential-pressure, automatic or manual drains, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR300C10AC1WT 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) |
Cleaning and regulating the shop-air feed to a machining centre's pneumatic tool-changer and clamping circuits, with 5 um filtration protecting fine valves and the automatic drain handling condensate overnight without operator attention.
Conditioning the air feeding conveyor stopper and pusher cylinders on a packaging line, where the regulator holds a steady set pressure so cylinder timing stays repeatable through the shift.
A point-of-use filter regulator at the drop from a factory air main to assembly-station air tools and fixtures, with the MPa gauge giving operators a local pressure readout and the bracket allowing panel mounting at the bench.
Size and port step up with flow demand: 200, 300, 400 and 600, with ports from 1/8 to 1 inch. This unit is the 300 size on a 3/8 in NPT thread. Drain type is a real choice: automatic (this model, code A) drains condensate without attention, manual needs a periodic drain, and differential-pressure is the default. Filtration is 40 um standard or 5 um fine (code W, as here) when downstream equipment needs cleaner air. The gauge is embedded square as standard with an optional external round gauge in MPa, psi or bar scales; this model carries the round gauge on MPa. Threads come as PT (standard), G or NPT, and a bracket is included unless the J code is ordered.
Because flow for the GFR series is published as curves and not as a single rated number, we do not quote a flow figure here. Send us your application and we will confirm the datasheet and sizing against it 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 a flow number here. Tell us your application and required flow, and we will confirm the datasheet figures and check the 300-size, 3/8 in port against your demand before you order.
The A in the code selects the automatic drain, which expels collected condensate without manual attention - useful on lines that run unattended. The W selects the 5 um fine filter element instead of the 40 um standard element, for downstream equipment that needs cleaner air. Both are order-time choices across the GFR 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.