The AirTAC GFR300C08ALJC2 AirTAC Filter Regulator PT1/4 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 AirTAC GFR300C08ALJC2 is a filter regulator from the GFR300 series: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is sized for a PT1/4 port, discharges condensate automatically from its metal bowl, carries the standard 40 um filter element, and is the low-pressure regulator type suited to circuits held at a reduced set pressure. It is fitted with an external round gauge reading in psi and is supplied without a mounting bracket, so plan your mounting accordingly.
This is a genuine AirTAC part. The G-series filter regulator line spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options across the family include manual or differential-pressure draining, a 5 um element (code W), embedded square or external round gauges with MPa, psi or bar scales, G or NPT threads in place of the PT standard, and a mounting bracket. Because flow is published as curves rather than a single rated figure, we confirm the datasheet figures for your application on request.
| Model | GFR300C08ALJC2 AirTAC Filter Regulator PT1/4 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. |
|---|---|
| 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) |
Filtered, regulated air to the clamping cylinders on a machining fixture. The low-pressure type suits circuits held at a reduced set pressure, the 40 um element keeps particulate out of the clamp valves, and the automatic drain clears condensate without daily blow-down.
A point-of-use filter regulator feeding the cylinders and air jets on a carton-sealing conveyor. The PT1/4 port drops straight into the machine's air inlet, and the automatic drain handles the moisture that collects on frequently running packaging lines.
Mounted at a machine drop on a factory air ring, this unit filters the shop supply and regulates pressure locally for one machine. The round psi gauge gives operators a direct local reading, and the metal bowl with automatic drain suits drops that are not manually drained.
The real, decodable choices on this family are: size and port (200/300/400/600, ports 1/8 to 1 in) stepped against what your line needs; drain type (this unit is automatic, with manual and differential-pressure also available); filter grade (40 um standard, 5 um with code W); gauge style and scale (this unit: external round, psi; embedded square gauges and MPa or bar scales are options); thread (PT standard, G or NPT to order); and bracket (not fitted here). One check we insist on: AirTAC publishes flow 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 GFR series as curves, not as a single rated number, so we do not quote a figure here. Tell us your application and we will confirm the flow and full datasheet figures for this exact unit on request.
The A in the code means condensate collected in the metal bowl is discharged automatically, so the unit suits installations that are not blown down every day. Manual-drain and differential-pressure versions of the same GFR300 filter regulator are available if you prefer a different drain 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.