The AirTAC GFR300C10ALJC1WT 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 GFR300C10ALJC1WT is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air through a 5 um element and regulates downstream pressure in a single body. This configuration is built for a 3/8 in NPT port, has an automatic drain that clears collected condensate without anyone walking the line, and carries the low-pressure regulator type with a round pressure gauge fitted on an MPa scale. The metal bowl drains automatically, maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -5 to 70 C (non-freezing). No mounting bracket is included and no reverse/check valve is fitted.
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 options include manual or differential-pressure drains, a 40 um standard element in place of the 5 um grade fitted here, embedded square or external round gauges with MPa, psi or bar scales, and G(BSPP) or NPT threads as orderable alternatives to the PT standard. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR300C10ALJC1WT 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) |
Feeding clamp and toggle cylinders on a CNC fixture line, where the 5 um element protects the directional valves and the low-pressure regulator holds a reduced setting for the clamping circuit.
Supplying air to stopper, pusher and diverter cylinders on a bottling or cartoning conveyor, with the automatic drain handling condensate on a line that runs without an operator in attendance.
Conditioning air on a laboratory test bench or pilot rig where fine 5 um filtration and a lower regulated supply are wanted, with the round MPa gauge giving a clear local pressure reading.
Choose the size step (200/300/400/600) and port to match the pipe and the air demand of the machine; this unit sits at size 300 with a 3/8 in NPT port. Where a bowl is fitted you pick the drain: automatic (as here) for unattended duty, manual for supervised points, or the differential-pressure default. Filter grade is 40 um standard or 5 um (code W) for finer protection - this unit carries the 5 um element. Gauges are the embedded square type or an external round gauge in MPa, psi or bar scales; this unit is fitted with a round MPa gauge. Thread is PT as standard with G(BSPP) and NPT as orderable options - this unit is NPT. Bracket and reverse/check valve are further choice points.
Because AirTAC publishes flow as curves rather than a single rating, we do not quote a flow number here. Send us your application and we will confirm the datasheet and sizing before you order. The regulation range of the low-pressure type is not published in our sheet; we will confirm it on request as well.
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 GFR300 family 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 curve and the datasheet figures on request before you order.
This GFR300 carries the low-pressure regulator variant instead of the standard one. The exact regulation range for the low-pressure type is not published in our data sheet, so we confirm it on request. The automatic drain, 5 um element, NPT3/8 port and round MPa gauge are as decoded above.
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.