The AirTAC GFR300C15ALC2WG AirTAC Filter Regulator G1/2 Low-Pressure 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 GFR300C15ALC2WG is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration carries a G1/2 port, a 5 um filter element (the finer W grade), an automatic drain that discharges collected condensate without manual attention, and a low-pressure regulator fitted with an external round gauge scaled in psi. A mounting bracket is included and the bowl is metal.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, plus drain, filter-grade, gauge, thread and bracket options. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR300C15ALC2WG AirTAC Filter Regulator G1/2 Low-Pressure |
|---|---|
| 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) |
On assembly fixtures where clamps and swing cylinders run at reduced pressure, this unit filters the shop air to 5 um and holds the regulated supply the circuit was set up for, with the psi gauge giving the operator a direct readout at the fixture.
Fitted at the drop of a cartoning or wrapping machine, it cleans water and particulate out of the plant air before the machine's valves and actuators and regulates the supply pressure, while the automatic drain keeps condensate off the bowl without daily manual bleeding.
Mounted at the feed to conveyor stoppers, pushers and diverters, it conditions the air feeding those cylinders and regulates it to the pressure the station requires, with the included bracket allowing panel or frame mounting next to the drop.
Size 300 with a G1/2 (1/2 inch) port is the mid-large step in the GFR range; step up to 400 or 600 or down to 200 depending on the pipe size and flow your line needs - flow is published as curves, not a single rating, so let us confirm sizing against your application before ordering. Drain options are automatic (this unit), manual, or differential-pressure; automatic suits points that are awkward to reach for bleeding. The filter grade here is the finer 5 um (W); the standard element is 40 um if coarser protection is enough. The round gauge is scaled in psi; square embedded gauges and MPa/psi/bar scales are the other catalogue choices. Thread is G on this code; PT is the standard thread and G/NPT are order options. A mounting bracket is included. This is the low-pressure regulator type - confirm its regulation range with us 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 this series as curves rather than a single rated figure, so we do not quote a number on the page. Tell us your application and required flow and we will confirm the datasheet figures for this exact model on request before you order.
L marks the low-pressure regulator type, as opposed to the standard type. This unit is therefore a low-pressure filter regulator; the exact regulation range for the low-pressure type is not published in our data, so confirm it with us on request. Everything else decodes normally: G1/2 port, G thread, 5 um element, automatic drain, round psi gauge, bracket included.
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.