The AirTAC GFR300C10AJF2WK AirTAC Filter Regulator PT3/8, 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 GFR300C10AJF2WK is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built for a PT3/8 port, filters to 5 um for finer protection than the standard 40 um element, drains condensate automatically, and carries an embedded square pressure gauge reading in psi. The regulator is the standard type with a 0.15-0.9 MPa (20-130 psi) adjustment range, a reverse/check valve is fitted, the drain bowl is metal, and the unit is supplied 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.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options include manual or differential-pressure draining, the 40 um standard element, alternative gauge scales (MPa, psi or bar), an external round gauge, a mounting bracket, and G (BSPP) or NPT threads in place of the standard PT. Flow for this series is published as curves rather than a single rating, so ask us to confirm the figures for your application and we will send the datasheet.
| Model | GFR300C10AJF2WK AirTAC Filter Regulator PT3/8, 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) |
Point-of-use filter regulation for the clamps, tool-change cylinders and air-blast circuits on a CNC machining centre: the 5 um element protects directional valves from fine contamination, and the automatic drain clears condensate without daily attention.
Regulated air for the gripper, pusher and stopper cylinders on a bottling or packaging conveyor line, where the square psi gauge lets line technicians set and verify working pressure at a glance during changeovers.
Supply air for weld-gun clamps and fixture cylinders in a robotic welding cell; the fitted reverse/check valve suits circuits that must not back-feed, and the metal bowl with automatic drain keeps condensate off the cell floor.
Size and port are the first choices: GFR sizes 200, 300, 400 and 600 step up in port and flow capacity, so match the 3/8 inch PT port here against the pipe run and the air demand of the circuit. Where draining is concerned you can order automatic (as here), manual, or the default differential-pressure type. Filtration is 40 um as standard or 5 um with the W code, as fitted here. Gauges can be the embedded square type or an external round gauge, with MPa, psi or bar scales. Threads come as PT standard, with G (BSPP) and NPT as order options, and a bracket can be included or omitted (omitted on this code). Because AirTAC publishes flow as curves rather than a single rated figure, 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 GFR300 flow as performance curves rather than a single rated figure, so we do not quote a number here. Tell us your application, pipe size and operating pressure, and we will confirm the flow figures from the datasheet on request before you order.
The W code orders the optional 5 um element instead of the 40 um standard, giving finer protection for sensitive valves and cylinders, and the A code orders an automatic drain that discharges collected condensate without manual attention. Manual and differential-pressure drains are available on other codes in the same series if you prefer a different arrangement.
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.