The AirTAC GFR300C10ALJC2WK AirTAC Filter Regulator PT3/8 5um 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 GFR300C10ALJC2WK is a GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built on the size 300 frame with PT3/8 ports, a 5 um filter element (the finer of the two published grades), and an automatic drain that expels collected condensate from the metal bowl without manual attention. The regulator is the low-pressure type, a round psi gauge is fitted so the downstream setting can be read directly, and a reverse/check valve is included. No mounting bracket is supplied with this code. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR line spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and can be ordered with manual or differential-pressure drains, the 40 um standard element, embedded square or external round gauges in MPa, psi or bar scales, and G (BSPP) or NPT threads instead of the PT standard. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR300C10ALJC2WK AirTAC Filter Regulator PT3/8 5um |
|---|---|
| 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) |
Feeding a bench pneumatic press or clamping fixture where the air must be filtered down to 5 um and held at a reduced, stable pressure before it reaches the cylinder valve stack, with the automatic drain keeping condensate out of the supply.
Point-of-use treatment on a packaging or cartoning line, conditioning the air that drives sealing jaws and pick-and-place actuators, while the round psi gauge lets the line technician read and verify the downstream setting at a glance.
Supplying filtered, regulated low-pressure air to a laboratory or test-bench rig where the low-pressure regulator type and a direct-reading psi gauge suit setups that run well below full line pressure.
The real, decodable choices on this series: step between sizes 200, 300, 400 and 600 to match the port and flow path your line needs - this unit sits at size 300 with PT3/8 ports. Drains can be ordered automatic (this code), manual, or differential-pressure; the element is 5 um here versus the 40 um standard; gauges are embedded square as standard with an external round option in MPa, psi or bar scales (this code carries a round psi gauge); and threads can be G (BSPP) or NPT instead of the PT standard. Brackets are optional - this code omits one. Because the regulator is the low-pressure type, tell us your working pressure band when you enquire. Flow for the GFR series is published as curves rather than a single rated figure, 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 GFR series as curves rather than a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the datasheet and check the sizing against your required flow before you order.
The L in the code marks the low-pressure regulator variant, intended for reduced downstream pressure bands; the exact adjustment range for this variant is not published on our sheet, so we confirm it on request. The A marks an automatic drain, which expels collected condensate from the metal bowl without manual intervention, unlike a manual or differential-pressure drain.
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.