
The AirTAC AirTAC GFR300-08 Filter Regulator (GFR30008F1WT) 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.
GFR30008F1WT is an AirTAC GFR300 filter regulator: filtration plus pressure regulation in a single body, specified with the finer 5 um (W) filter element and NPT (T) threads for US-style piping. The 08 port is 1/4 in, the bowl uses the differential-pressure drain, and the built-in square gauge reads in MPa. With this drain type the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi). The 300-size bowl is polycarbonate (PC), working temperature is -5 to 70 C (non-freezing), and maximum inlet pressure is 1.0 MPa (145 psi). Medium: compressed air only.
This is a genuine AirTAC part supplied through a distributor. The G-series spans sizes 200 to 600 with 40 um or 5 um elements, differential-pressure, automatic or manual drains, standard or low-pressure regulator types, PT, G or NPT threads, bracket options, and round or square gauges. Flow is published as curves rather than a single rating, so we confirm flow and datasheet figures for your application on request.
| Model | AirTAC GFR300-08 Filter Regulator (GFR30008F1WT) |
|---|---|
| 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, MPa 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 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) |
Prepares the air feeding the gripper cylinders of a fast pick-and-place gantry on a US-built assembly line, with NPT threads matching the machine's piping standard.
Filters and regulates the air routed to a robot arm's end-effector tooling, giving the gripper circuit one clean, adjustable supply point near the cell.
Sets and holds a stable supply pressure for spray guns at a coating line touch-up station, with the MPa gauge letting operators verify the setting between batches.
Match size to demand: GFR200-06 for light circuits, this GFR300 / 1/4 in unit mid-range, GFR400-15 and GFR600-25 for heavier flow. The trailing T gives NPT threads; PT is the G-series standard and G (BSPP) is also orderable. Filter grade is 5 um (W) here versus the 40 um standard - pick W for cleaner air to sensitive valves. Drain is differential-pressure; automatic (A) or manual (M) variants exist, with manual opening the 0.05-0.9 MPa adjustment range. Gauge scale is MPa with psi and bar available, and a bracket can be ordered. Flow is published as curves, not a single rating, so 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 G-series flow as curves rather than a single rated figure, so we do not state a number here. Tell us your application and we will confirm the flow data from the datasheet on request.
The W in the code specifies the 5 um filter element; without W the unit carries the 40 um standard element. Everything else in this code - 300 size, 1/4 in NPT, differential drain, MPa square gauge - decodes identically.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.