The AirTAC GFR300C08JC3T AirTAC Filter Regulator NPT1/4 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 GFR300C08JC3T is a filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate from compressed air with a 40 um element, then holds your downstream pressure steady across an adjustment range of 0.15-0.9 MPa (20-130 psi). This 300-size unit is ported NPT1/4, is fitted with a round pressure gauge reading in bar, uses the differential-pressure drain (the bowl bleeds automatically as flow passes through), and is ordered without a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The bowl on this 300 size is polycarbonate (PC).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drain, an optional 5 um element (code W), square or round gauges with MPa, psi or bar scales, optional bracket, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR300C08JC3T AirTAC Filter Regulator NPT1/4 |
|---|---|
| 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. |
|---|---|
| C0 | 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-C0 (two-unit set) |
Feeding clean, regulated air to the tool-clamp and chip-clearing circuits of a CNC machining centre, where the 40 um element keeps swarf and water out of the clamp cylinder and the regulator holds a steady set pressure at the spindle station.
Supplying filtered, regulated air to the divert gates, label heads and bag-seal cylinders on a packaging conveyor, so actuator speed stays repeatable through a full shift and the differential-pressure drain keeps up with continuous flow.
Conditioning the air feeding gripper and clamp actuators on a robotic welding cell, protecting the compact valves from moisture and particulate while the bar-reading round gauge lets the technician verify set pressure at a glance.
Start with the port step: this unit is 300 size with a 1/4 in NPT port - if your line needs more flow, step up to the 400 or 600 size rather than starving a 1/4 in port. Choose the drain next: differential-pressure (this unit) suits steady continuous flow, automatic suits intermittent or low-flow duty, and manual suits supervised installations where someone drains the bowl on a schedule. The standard element is 40 um; specify the W option for 5 um if downstream equipment needs finer filtration. Gauges come as an embedded square unit or an external round unit, with MPa, psi or bar scales - this configuration carries a round gauge reading in bar. Thread is NPT here; PT is the catalogue standard and G (BSPP) is also available to order. A bracket is optional (this unit is supplied without one). One honest note: flow is published as curves, not a single rating, so send us your application and we will confirm sizing against the datasheet 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 GFR300 as curves, not as a single rated number, so we do not quote a figure here. Tell us your inlet pressure, set pressure and the flow your application needs, and we will confirm the sizing against the datasheet on request before you order.
The differential-pressure drain bleeds condensate from the bowl automatically whenever air flows through the unit, which suits continuously running lines. If your usage is intermittent or very light, the automatic drain (code A) drains regardless of flow; if someone is on site to drain the bowl on a schedule, the manual drain (code M) is the simpler choice - and note the manual-drain version has a wider 0.05-0.9 MPa adjustment 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.