
The AirTAC AirTAC GFR300-10 Filter Regulator (GFR30010JC1W) is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/8" 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 GFR300-10JC1W is a combined filter regulator: it removes water and fine particulate from compressed air and holds downstream pressure steady in one body. This 300-size unit has a PT3/8 port, the finer 5 um filter element (W suffix), a differential-pressure drain and an external round pressure gauge reading in MPa. Max inlet pressure is 1.0 MPa (145 psi) and the setting range with differential drain is 0.15-0.9 MPa (20-130 psi).
This is a genuine AirTAC part from the G-series, which covers 200, 300, 400 and 600 sizes with drain, element-grade, gauge and thread options to match. The 300-size polycarbonate bowl suits standard duty; the 600 size moves to an aluminium alloy bowl. Flow is published as curves, so we confirm exact flow and datasheet figures on request before you order.
| Model | AirTAC GFR300-10 Filter Regulator (GFR30010JC1W) |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (PT thread) |
| Filtering grade | 5 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 — round, MPa 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. |
|---|---|
| 10 | Port size PT3/8". 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeding cylinders and ejectors on a laboratory sampling or testing rig, it removes fine particles that could disturb sensitive pneumatic components while holding a steady working pressure.
Installed on the air supply to a CNC machining centre's tool-change circuit and air-blast nozzles, it filters fine contamination from the shop air and keeps the regulated pressure constant.
Positioned upstream of pneumatic valve positioners and actuators on a process line, it delivers cleaner-than-standard air and a stable set pressure that positioners depend on.
The 300 size at PT3/8 suits lines ported at 3/8 that need mid-range G-series flow; check the 400 size if your demand is near the top of what a 300 can pass. This code's W suffix selects the 5 um element instead of the standard 40 um - choose it where air tools, valves or instruments need finer protection, and note that finer elements load up faster so drain choice matters more. Differential-pressure drain and round MPa gauge are built into this code; the JC1WK variant adds a check valve if you need one. PT thread is standard; G and NPT are separate order codes. Flow appears only as curves, not a single rating, so ask us to confirm sizing against the datasheet 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 capacity as curves, not as a single rated number, so quoting one figure would be guesswork. Send us your operating pressure and demand and we will confirm the sizing from the datasheet on request.
The W suffix in this code selects the 5 um grade, suited to finer equipment such as positioners, ejectors and precision cylinders; the standard 40 um grade suits general plant air. Both are available across the G-series filter, filter-regulator and combination units as separate codes.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.