The AirTAC GFR300C08C2WK AirTAC Filter Regulator PT1/4, 5 um is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet 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 GFR300C08C2WK is a filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This configuration is built for 1/4 in PT ports, carries the 5 um filter element (code W) instead of the standard 40 um grade, and uses a differential-pressure drain, so condensate is expelled as the pressure differential across the element builds - no manual draining routine. The standard regulator covers 0.15-0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), an external round psi gauge is fitted, a reverse/check valve holds the downstream setting if supply pressure dips, and a mounting bracket is included. The polycarbonate bowl suits ambient temperatures of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and can be ordered with manual or automatic drains, a 40 um or 5 um element, embedded square or external round gauges in MPa, psi or bar scales, G (BSPP) or NPT threads, and with or without a bracket. Flow is published as curves rather than a single rating, so ask us to confirm the figures for your application before ordering.
| Model | GFR300C08C2WK AirTAC Filter Regulator PT1/4, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 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 — factory standard, Factory standard 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. |
|---|---|
| C0 | Port size See datasheet. 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). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C0 (two-unit set) |
Feeds the clamp cylinders on a CNC fixture: the 5 um element keeps fine debris out of the clamp circuit, the regulator holds a steady clamping pressure, and the check valve holds the clamp if supply pressure dips mid-cycle.
Powers the air cylinders that flip diverters and gates on a parcel-sorting conveyor, giving each gate a filtered, regulated supply at a set pressure so throw positions stay repeatable through the shift.
Sits ahead of the cylinder bank on a carton-forming or wrapping machine, removing water and particles from the plant air line and regulating the pressure the seal and fold cylinders actually see.
Choose the size by port and flow: this 300 size with 1/4 in PT ports sits mid-range; step up to 400 or 600 for larger ports and more flow, or down to 200 for compact lines. Because flow is published as curves, not a single rating, send us your supply pressure, set pressure and required flow and we will confirm sizing before you order. Filter grade is a real choice: 40 um is the standard protection level, while the 5 um element (W) fitted here suits finer downstream needs. Drain types are differential-pressure (this unit), automatic (A) or manual (M). Gauges can be embedded square or external round, scaled in MPa, psi or bar - this unit carries the round psi gauge. Thread is PT as standard, with G (BSPP) and NPT as order options, and the bracket is included (code J deletes it).
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 GFR flow as curves rather than a single rated figure, so there is no one l/min or SCFM number we can quote. Tell us your line pressure, set pressure and required flow, and we will confirm from the datasheet whether this GFR300 at 1/4 in PT suits the application.
The W code fits the 5 um element for finer filtration where downstream valves and cylinders need cleaner air; the standard grade is 40 um. Both are catalogue options across the GFR family, and this unit is built with the 5 um element together with a differential-pressure drain, a round psi gauge and a reverse/check valve.
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.