The AirTAC GFR30008LC1WT AirTAC Filter Regulator NPT1/4 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/4" 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 GFR30008LC1WT is an AirTAC GFR300 filter regulator: a 5 um filter element and a pressure regulator combined in one body, sized for a 1/4 in (NPT1/4) port. This unit is the low-pressure regulator type, fitted with an external round gauge scaled in MPa, a differential-pressure drain that bleeds condensate automatically as air passes, and a polycarbonate bowl; a mounting bracket is included. 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 is available in sizes 200, 300, 400 and 600 with 1/8 in to 1 in ports, differential-pressure, automatic or manual drains, 40 um standard or 5 um (W) elements, embedded square or external round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application on request.
| Model | GFR30008LC1WT AirTAC Filter Regulator NPT1/4 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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 — round, MPa 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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. |
|---|---|
| 08 | Port size PT1/4". 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)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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 · PT1/4" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Feeding a light-duty pneumatic press or clamping fixture specified for the low-pressure regulator type, where the 5 um element keeps downstream valve pilot ports clean and the MPa gauge gives a visible set point.
Conditioning shop air to a CNC machine's solenoid valves and air cylinders: water and 5 um particulate are removed in the same body that regulates supply pressure, saving FRL panel space.
Supplying diverting and stopper cylinders on a packaging or sortation conveyor, where the differential-pressure drain sheds condensate during passing flow and the bracket simplifies panel mounting.
Choose the size by the port and flow step: GFR sizes 200, 300, 400 and 600 map to 1/8 in through 1 in ports, and the right step is the one whose flow curve clears your air demand at your working pressure. This unit is already specified with the 5 um (W) element, the differential-pressure drain, the round MPa gauge and the NPT thread; the standard build uses a 40 um element, and automatic or manual drains, square gauges with psi or bar scales, G or PT threads and a no-bracket option are orderable alternatives. The low-pressure regulator type suits circuits that hold lower set pressures than the standard type; its exact range is not published, so confirm it with us.
Because flow is published as curves rather than a single rating, 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 GFR300 flow as curves rather than a single rated figure, so we do not quote a number here. Send us your line pressure, set pressure and air demand and we will confirm the flow from the datasheet on request before you order.
The W code in GFR30008LC1WT specifies the 5 um element instead of the 40 um standard, for finer protection of downstream valves and cylinders. The blank drain position is the differential-pressure type, which bleeds condensate automatically as air passes; automatic and manual drains are orderable alternatives.
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.