AirTAC GFR300-08 Filter Regulator (GFR30008C1WK)
The AirTAC AirTAC GFR300-08 Filter Regulator (GFR30008C1WK) 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.
- TypeFilter regulator
- Port sizePT1/4"
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- DrainDifferential-pressure drain
- Bowl materialPC
- Pressure gaugeFitted
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the AirTAC GFR300-08 Filter Regulator (GFR30008C1WK)
The AirTAC GFR30008C1WK is a G-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure in one compact body. This configuration is the 300 size with a PT1/4 (Rc 1/4) port, the finer 5 um (W) filter element for cleaner air, a differential-pressure drain, a reverse/check valve fitted, and an external round pressure gauge reading in MPa. The regulator adjusts from 0.15 to 0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the 300-size polycarbonate bowl suits ambient temperatures of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, drain types (differential-pressure, automatic or manual), 40 um or 5 um elements, PT, G or NPT threads, and gauge or check-valve options. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures for your application on request.
AirTAC GFR300-08 Filter Regulator (GFR30008C1WK) Technical Specifications
| Model | AirTAC GFR300-08 Filter Regulator (GFR30008C1WK) |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (PT 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, MPa scale |
| Reflux valve | Fitted (reverse flow permitted) |
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.
Model Code: AirTAC GFR300-08 Filter Regulator (GFR30008C1WK)
| 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). |
| C | Gauge shape: Round. 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. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - PT1"
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) |
Where the AirTAC GFR300-08 Filter Regulator (GFR30008C1WK) Is Used
Paint spray booth gun supply
Feeds spray guns on a finishing line with filtered, pressure-regulated air; the 5 um element helps keep moisture and fine particles out of the paint finish while the gauge lets operators set gun pressure.
Packaging machine actuators
Sits at the drop point of a cartoning or wrapping machine, conditioning the air and holding a stable setting for the cylinders that form, fill and seal each pack.
Pneumatic clamping on a machining centre
Regulates the air to workholding clamps on a CNC fixture, with the check valve helping hold the set circuit condition and the MPa gauge giving a clear set-point reference.
Is the AirTAC GFR300-08 Filter Regulator (GFR30008C1WK) the Right Unit?
Choose the 300 size with its PT1/4 port when your line plumbing is 1/4 inch and the flow falls in the mid range of the GFR family; step up to 400 or 600 for larger ports and higher flow, or down to 200 for compact circuits. This unit already carries the finer 5 um element, a differential-pressure drain and a MPa-scale round gauge, plus a reverse/check valve. PT is the standard thread; G (BSPP) and NPT are catalogue options you can order. If you need the 40 um element instead, or a manual or automatic drain, ask us for the matching code. Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing before you order.
Quick checklist
- ✓ Body size for your peak flow (PT1/4" here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.15 - 0.9 MPa (20 - 130 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC GFR300-08 Filter Regulator (GFR30008C1WK) FAQ
AirTAC publishes filter-regulator performance as flow curves, not as a single rated number, so we do not quote a figure here. Tell us your line pressure and demand and we will confirm the correct size from the datasheet on request.
The W code on this model means the finer 5 um element, chosen where downstream devices are sensitive to fine particles, such as spray guns, instrumentation or precision cylinders. The standard grade is 40 um; if your application does not need fine filtration, the 40 um version of the same 300-size regulator is the usual choice.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Request a Quote for AirTAC GFR300-08 Filter Regulator (GFR30008C1WK)
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.