The AirTAC GFR300C10ALJC3WT AirTAC Filter Regulator NPT3/8 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 AirTAC GFR300C10ALJC3WT is a GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure in one body. This configuration is size GFR300 with NPT3/8 (3/8 in) ports, a 5 um filter element (the W grade, finer than the 40 um standard), an automatic drain that expels collected condensate without manual attention, and the low-pressure regulator type. It carries an external round gauge reading in bar, a metal bowl, and no 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 in, and offers a choice of drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um optional), gauge style and scale (embedded square gauge standard; external round gauge optional with MPa, psi or bar scales), thread (PT standard, with G and NPT as catalogue options) and bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet details for your application before ordering.
| Model | GFR300C10ALJC3WT AirTAC Filter Regulator NPT3/8 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) |
Filtered, regulated low-pressure air for gripper and clamp cylinders on a bottling line; the 5 um element and automatic drain keep particles and condensate out of the downstream valve stack.
Low-pressure hold-down circuits on a robotic weld cell, where the round bar gauge lets an operator verify the setpoint at a glance during changeover.
Pneumatic diverters and stoppers along a packaging conveyor, supplied with clean, regulated air and drained automatically between shifts.
Size and port set the capacity step: this unit is size 300 with NPT3/8 ports; step up to size 400 or 600 for larger air demand. Drain choice matters: the automatic drain fitted here suits unattended duty, while manual and differential-pressure drains are the family alternatives. The filter grade is 5 um on this code versus the 40 um standard. The gauge is an external round gauge with a bar scale (the embedded square gauge is the standard fitting, with MPa and psi scales available as options). Thread is NPT on this code, with PT and G as catalogue alternatives; the bracket is omitted (J code) and no reverse/check valve is fitted. Because flow is published 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 flow for the GFR series as curves, not as a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow and sizing from the datasheet on request.
This code is the low-pressure regulator type. Its exact adjustment range is not published in the material we can state, so we confirm the figure from the datasheet on request. The unit is otherwise a GFR300 filter regulator with NPT3/8 ports, a 5 um element, an automatic drain and a round bar gauge.
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.