The AirTAC GFR300-10F2 AirTAC Filter Regulator, G3/8, 5 um 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 GFR300-10F2WG is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in one body, with a G3/8 (BSPP) port. This configuration carries the 5 um element (code W, finer than the standard 40 um), a differential-pressure drain, the standard regulator with a 0.15-0.9 MPa (20-130 psi) setting range, an embedded square gauge reading in psi, and a mounting bracket. The polycarbonate bowl collects condensate and debris; maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR300 series spans sizes 200 to 600 with ports from 1/8 to 1 inch, plus drain, filter-grade, gauge-scale, bracket and thread options (PT as standard; G and NPT as order options). Flow for the series is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet details against your application.
| Model | GFR300-10F2 AirTAC Filter Regulator, G3/8, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (G (BSPP) 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 — square, psi 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) 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) |
Feed filtered, regulated air to the workholding clamps and pneumatic tool circuits on a CNC machining centre, with the 5 um element protecting downstream valves from fine particulate.
Supply a packaging conveyor's cylinder and gripper circuits from one point: the filter stage strips water and chips from plant air while the regulator holds a steady setting for consistent case sealing.
Condition the compressed air feeding a lab analyser enclosure or pneumatic sample-handling panel, where the 5 um grade and a stable regulated pressure keep sensitive components supplied with clean air.
Step up through the size range (200/300/400/600) as port and flow demand grow; this unit is size 300 with a G3/8 port. Choose the drain type: differential-pressure (this unit), automatic (code A) or manual (code M). Filter grade is 40 um as standard; this unit carries the 5 um W element for finer filtration. The embedded square gauge reads psi, with MPa and bar scales and an external round gauge available as options. Thread is G (BSPP); PT is the standard thread and NPT is an order option. Flow is published as curves, not a single rating, so 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 the GFR300 series as curves rather than a single rated figure, so we do not quote a number here. Tell us your application and required port size and we will confirm the flow and datasheet figures on request.
The GFR300 series uses a 40 um element as standard; the W code on this model specifies the optional 5 um element for finer particulate removal. Choose 5 um where downstream valves, cylinders or instruments need cleaner air, and 40 um for general plant air service.
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.