The AirTAC GFR30008LF2WT 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 GFR30008LF2WT is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in one body. This configuration carries 1/4 in NPT ports, the finer 5 um filter element (W grade, versus the 40 um standard), a differential-pressure drain that bleeds condensate as flow varies, and the low-pressure (L) regulator type. A square pressure gauge scaled in psi is fitted, the polycarbonate bowl suits non-freezing compressed air from -5 to 70 C, a mounting bracket is included, and maximum inlet pressure is 1.0 MPa (145 psi).
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 for drain type, filter grade, gauge scale, thread (PT standard, G and NPT to order) and low-pressure regulation. Flow is published as curves rather than a single rated figure, so we confirm datasheet figures on request to match your application.
| Model | GFR30008LF2WT 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 — 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. |
| 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) |
Feeds print-head and feed-roller cylinders on a web printing press with water- and particle-free air, holding a steady low regulated supply so impression quality does not drift through a shift.
Sits ahead of the sealing-jaw cylinders on a bagging conveyor, removing condensate and 5 um debris and regulating the low-pressure supply so seals stay consistent bag after bag.
Conditions the air feeding spray guns in a finishing booth: the 5 um element keeps moisture and particulate out of the air reaching the nozzle while the regulator holds the low pressure the gun was set up for.
Size and port step up with flow demand: 200, 300, 400 and 600 cover ports from 1/8 to 1 in. For this unit the choices are already set: NPT1/4 ports, 5 um element, differential-pressure drain, low-pressure regulator, square psi gauge, bracket included. If you are selecting across the family, decide drain type (differential-pressure, automatic A, or manual M), filter grade (40 um standard or 5 um W), gauge scale (MPa, psi or bar), thread (PT standard, G or NPT) and whether the low-pressure L type fits your circuit. 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 GFR300 as curves rather than a single rated figure, so there is no one number we can quote honestly. Tell us your application and we will confirm the flow figures from the datasheet on request before you order.
The W code fits the finer 5 um element instead of the 40 um standard, which suits circuits with sensitive valves or instruments downstream. This unit drains by differential pressure and has a polycarbonate bowl, so keep the medium non-freezing between -5 and 70 C.
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.