The AirTAC GFR30008MLF2W 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR30008MLF2W is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is the 300 size with a PT1/4 (1/4 in) port, a 5 um filter element (code W, versus the 40 um standard), a manual drain on the polycarbonate bowl, and the low-pressure regulator type. The embedded square gauge is fitted with a psi scale, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans the 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, PT thread as standard and G (BSPP) or NPT as order options, plus a choice of drain type, filter grade, gauge scale and reverse/check valve. Max inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). Rated flow is published as curves rather than a single figure, so ask us to confirm datasheet figures for your application.
| Model | GFR30008MLF2W AirTAC Filter Regulator PT1/4, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (PT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 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 spray guns on a finishing line, where air must be filtered to 5 um and held at the low, steady pressure the gun manufacturer specifies, with a psi gauge visible at the booth.
Supplying low-pressure air to bench-top clamping and test fixtures that need clean, regulated air and a local psi readout, with a manual drain for a controlled end-of-day purge.
Conditioning the air feeding carton-sealer and labeling cylinders on a packaging line, where the 5 um element protects valves and the manual drain suits scheduled maintenance rounds.
The real choices on this family: step through the 200/300/400/600 sizes to match port and flow duty (this unit is 300 with a PT1/4 port); pick the drain - manual here, with automatic or differential-pressure available; choose the 40 um standard element or the 5 um W grade fitted here for finer particulate removal; and set the gauge scale (MPa, psi or bar - this unit carries psi on the embedded square gauge). PT thread is standard, G (BSPP) and NPT are order options, and a bracket is included. The low-pressure regulator type is intended where regulated pressure sits below what the standard type covers.
Flow is published as curves, not a single rated number, so we do not quote a rated flow for this unit. Send us your application details and we will confirm sizing against the datasheet curves before you order.
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 we do not quote a rated flow number for this unit. Send us your application details and we will confirm the flow from the datasheet curves on request.
This configuration uses a manual drain, so the bowl is purged by hand - suited to lines with regular maintenance rounds; automatic and differential-pressure drains are available in the same family. The W-code 5 um element filters more finely than the 40 um standard, which helps protect sensitive downstream equipment.
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.