The AirTAC GFR300C08ALC2WGK AirTAC Filter Regulator G1/4, 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 GFR300C08ALC2WGK is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one compact body. This configuration sits on the size-300 frame with a G1/4 (BSPP) port, a 5 um filtering element for finer air than the 40 um standard grade, an automatic drain that ejects collected condensate without manual attention, a low-pressure regulator type, a round external gauge scaled in psi, and a built-in reverse (check) valve. Mounting bracket included; metal bowl.
This is a genuine AirTAC part from the GFR range, published in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and catalogue options covering drain type, filter grade, gauge style and scale, thread form (PT standard; G and NPT to order) and bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request before ordering.
| Model | GFR300C08ALC2WGK AirTAC Filter Regulator G1/4, 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. |
|---|---|
| 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 directional control valves on a carton-forming and sealing machine, where the 5 um element helps keep spool valves free of particulate and the automatic drain handles condensate between shifts.
Supplying reduced-pressure air to analytical instruments or test rigs that cannot take full line pressure - the low-pressure regulator type and the psi-scaled round gauge make setpoints easy to read and verify at the bench.
Regulating supply to clamp and lift cylinders on a small assembly fixture, with the built-in check valve holding the downstream circuit against momentary supply dips and the G1/4 port matching standard fitting hardware.
The real, decodable choices: step between sizes 200/300/400/600 to match the port and flow path your line needs; choose automatic drain (as fitted here) where the bowl cannot be attended daily, manual where you want positive control, or differential-pressure as the default; pick the 5 um element (code W, fitted on this unit) when downstream valves or instruments need finer air than the 40 um standard. This unit carries a round external gauge scaled in psi; the embedded square gauge and MPa/bar scales are the other catalogue options. Thread is G (BSPP) here; PT is the standard thread and NPT is an order option. Flow is published as curves, not a single rating - send us your flow and pressure targets 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 GFR flow as curves rather than a single rated figure, so we do not quote a number here. Tell us your required flow and working pressure and we will confirm the sizing from the datasheet on request before you order.
The automatic drain ejects collected condensate on its own, so the bowl does not need manual bleeding on attended equipment. The 5 um element (code W) filters more finely than the 40 um standard, which suits downstream valves and instruments. This is the low-pressure regulator type; its exact adjustment range is not published in the catalogue, so we confirm it on request.
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.