The AirTAC GFR30008JC2WT 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 AirTAC GFR300 combines water-and-particulate filtration with pressure regulation in a single body, so one 1/4 in (NPT1/4) connection handles both jobs in the air-preparation line. This configuration carries the 5 um filter element (code W) for finer cleaning than the standard 40 um grade, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, a round pressure gauge reading in psi, and the standard regulator covering 0.15-0.9 MPa (20-130 psi). No mounting bracket is fitted and no reverse/check valve is included. The polycarbonate bowl suits the non-freezing -5 to 70 C operating range, with maximum inlet pressure of 1.0 MPa (145 psi).
This is a genuine AirTAC part from the GFR filter-regulator family, which spans size 200, 300, 400 and 600 bodies with port sizes from 1/8 in up to 1 in and PT, G or NPT threads. Drain types (differential-pressure, automatic or manual), filter grades (40 um standard, 5 um optional), gauge styles and scales, brackets and check valves are all orderable options. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR30008JC2WT 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 | 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 — 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. 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). |
| 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. |
| 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 filtered, regulated air to the clamp cylinders on a CNC fixture line, where the 5 um element protects fine valve internals and the psi gauge lets setters verify clamp pressure at a glance.
Prepares the air supply for diverter gates and carton pushers on a packaging conveyor, combining filtration and regulation in one 1/4 in drop so a single unit serves the local valve manifold.
Sits at the point of use on a bench assembly station, cleaning water and particles from the shop air and holding a steady regulated pressure for air tools and small actuators.
Start with the port step: size 300 in 1/4 in NPT sits in the middle of the GFR range, and the right choice depends on the flow your line needs - step up to size 400 or 600, or down to 200, if the duty differs. Drain type is a real decision: differential-pressure (this unit) drains with flow, automatic drains on its own, and manual requires periodic draining; manual also widens the regulation range to 0.05-0.9 MPa (7-130 psi) versus 0.15-0.9 MPa (20-130 psi) here. Filter grade is 40 um standard or 5 um (W) for finer protection - this unit carries the 5 um element. Gauge style (embedded square or external round) and scale (MPa, psi or bar) are selectable; this one is a round psi gauge. Thread is PT as standard with G and NPT as order options, and a bracket can be added if panel or wall fixing is needed.
Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing against the datasheet 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 GFR300 as curves rather than a single rated figure, so we do not quote a l/min or SCFM number. Send us your application details and we will confirm the flow and sizing from the datasheet on request.
The W in the code specifies the optional 5 um filter grade, finer than the 40 um standard, for protecting sensitive downstream components. The drain code is blank, which is the differential-pressure type: condensate is discharged automatically as air flows through, with no manual draining needed under normal flowing duty.
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.