The AirTAC GFR30008LC2W AirTAC Filter Regulator PT1/4 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 GFR30008LC2W is an AirTAC GFR300 filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate from compressed air through a 5 um element (the W grade, one step finer than the 40 um standard) and regulates downstream pressure in a low-pressure configuration. This unit is built for 1/4 in PT ports, carries a differential-pressure drain that bleeds condensate automatically when the pressure differential rises, and is fitted with an external round gauge scaled in psi. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The polycarbonate bowl suits the 300 size, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with a choice of ports, PT, G or NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um filtration, low-pressure or standard regulation, and square or round gauges in MPa, psi or bar scales. Flow for this series is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures on request before you order.
| Model | GFR30008LC2W AirTAC Filter Regulator PT1/4 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (PT 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, psi 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. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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 · PT1/4" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Feeds clamp and hold-down cylinders on a fixture line where the downstream circuit runs at reduced pressure and the 5 um element keeps fine particulate out of the clamping valves.
Sits ahead of directional valves and small actuators on a packaging machine, filtering condensate and dirt from the shop air while holding a steady low-pressure setting.
Mounted at the point of use on a machine tool's pneumatic circuit, the PT1/4 connection, psi round gauge and differential-pressure drain keep tool-change and workholding air clean and regulated.
Step up or down through the GFR sizes (200, 300, 400, 600) against the port your line needs; this 300 unit lands on PT1/4, with G or NPT threads available to order. The 5 um (W) element suits actuation that is sensitive to fine particulate; choose the 40 um standard where coarser protection is enough. Drain choice matters: this unit uses the differential-pressure drain (the default), while automatic (A) and manual (M) versions exist. The fitted round gauge reads in psi; embedded square gauges and MPa or bar scales are alternatives. A bracket is included. Regulation here is the low-pressure (L) type, so confirm the set pressure you need against the published range before ordering. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application.
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 no single number can be stated here. Tell us your line pressure, set pressure and the air demand of your application, and we will confirm the sizing against the datasheet curves on request before you order.
L marks the low-pressure regulator type, intended for reduced downstream set pressures; the exact range for this type is confirmed on request. There is no drain code in this model, which means it carries the differential-pressure drain: condensate collected in the polycarbonate bowl is discharged automatically when the pressure differential across the element rises, with no manual blowing down required.
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.