The AirTAC AirTAC GFR30008JF2WT Filter Regulator 1/4 in NPT, 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 GFR30008JF2WT is a GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single 300-size body. This configuration has a 1/4 in NPT port, a 5 um filter element, a differential-pressure drain, and an embedded square gauge reading in psi. The standard-type regulator adjusts from 0.15-0.9 MPa (20-130 psi), and the polycarbonate bowl shows accumulated condensate at a glance.
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 include the 40 um standard element, automatic or manual drains, MPa or bar gauge scales, an external round gauge, a reverse/check valve, and G or NPT threads in place of the PT standard. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet for your application.
| Model | AirTAC GFR30008JF2WT Filter Regulator 1/4 in NPT, 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 | Standard 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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (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) |
Filtered, regulated 1/4 in air to the tool-clamp and chip-door cylinders on a CNC machining centre, with the 5 um element protecting pilot valves from fine particulate.
Steady regulated pressure to stoppers and pushers on a bottling-line conveyor, where pressure swings would upset the timing of reject and divert cylinders.
A regulated branch feeding the solenoid-valve manifold that actuates clamps on a welding or assembly fixture, keeping clamp force repeatable across the shift.
Size the GFR300 by port and expected demand: the 300 size with a 1/4 in NPT port suits compact machine supply drops, while the 400 and 600 sizes step up for higher demand. Choose the drain to match access: differential-pressure (this unit) drains on load swings, automatic suits unmanned installations, and manual suits attended points. The 5 um element (code W) is the finer choice over the 40 um standard where downstream valves or instruments need cleaner air. The embedded square psi gauge can be ordered with MPa or bar scales instead, and G or NPT threads are catalogue options to the PT standard. Flow is published as curves, not a single rating, so send us your application and we will confirm sizing 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 GFR300 flow as curves rather than a single rated figure, so we do not quote a number here. Tell us your inlet pressure and downstream demand and we will confirm the datasheet curve and sizing for your application on request.
The W code orders the 5 um element instead of the 40 um standard, which suits points feeding sensitive valves or instruments; the 2 code orders the embedded square gauge with a psi scale (MPa and bar scales are also available). Drain is the differential-pressure type and the thread is NPT; PT is the standard, with G and NPT as order options.
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.