The AirTAC GFR300-08LF2W AirTAC Filter Regulator 1/4 in PT, 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 AirTAC GFR30008LF2W is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at a set point, all in one body. This 300-size unit is fitted with a 1/4 in PT port, a 5 um filter element (the finer of the two published grades), a differential-pressure drain, a low-pressure regulator and an embedded square gauge scaled in psi. The polycarbonate bowl lets you see accumulated condensate at a glance, a mounting bracket is included, and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part in the GFR series, which spans 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in and PT, G or NPT threads. Drain type, filter grade, gauge style and scale are selectable at order time. Published flow data appears as curves rather than a single rating, so ask us to confirm figures against your application before ordering.
| Model | GFR300-08LF2W AirTAC Filter Regulator 1/4 in PT, 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 — square, 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). |
| F | Gauge shape: Square. 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) |
Feeding clamping cylinders on a stamping or forming cell: the 5 um element strips water and swarf before they reach the cylinder seals, while the low-pressure regulator holds a gentle, repeatable clamp force at the set point.
Point-of-use preparation for carton sealers and case packers: clean, moisture-reduced air protects the machine's valves and actuators, and the psi-scaled square gauge gives operators a visible set point during changeover.
Supplying pick-and-place grippers and small pneumatic tools in an assembly cell: fine 5 um filtration guards the gripper's internal passages, and steady regulated pressure keeps part handling consistent cycle after cycle.
Size the unit by port and expected flow: this 300-size unit carries a 1/4 in PT port, and larger sizes in the series handle more air. Drain choice matters: differential-pressure (as fitted here) drains as pressure drop builds, automatic drains unattended, and manual needs operator attention. Filter grade is 5 um on this unit (code W); 40 um is the standard alternative where finer filtration is not required. The embedded square gauge is scaled in psi, with MPa or bar scales and an external round gauge available as options. PT is the standard thread, with G (BSPP) and NPT available as order options, and a mounting bracket is included. 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 flow for the GFR series as curves, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow data from the datasheet for this 1/4 in port size before you order.
The L in GFR30008LF2W marks the low-pressure regulator variant rather than the standard one. Its exact adjustment range is not published in the material we hold, so we confirm it on request. The unit's maximum working (inlet) pressure is 1.0 MPa (145 psi), and it is otherwise a standard GFR300 filter regulator with a 5 um element, differential-pressure drain and square psi 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.