Airtac GFR Filter Regulator GFR300C08AJC1
The AirTAC GFR Filter Regulator GFR300C08AJC1 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.
- TypeFilter regulator
- Port sizeSee datasheet
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 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 GFR Filter Regulator GFR300C08AJC1
The AirTAC GFR series gives you filtration and pressure regulation in one 1/4in body. This 300-size unit has a PT1/4 port, the standard 40 um element, an automatic drain that discharges condensate without manual attention, and the J code, meaning it is supplied without a mounting bracket. The C1 option replaces the embedded square gauge with an external round gauge scaled in MPa, used to set downstream pressure within the 0.15-0.9 MPa (20-130 psi) regulation range. Maximum inlet pressure is 1.0 MPa (145 psi); the polycarbonate bowl suits -5 to 70 C.
This is a genuine AirTAC part. Across the G-series you can step through 200, 300, 400 and 600 sizes and 1/8in to 1in ports, choose 40 um or 5 um elements, differential-pressure, automatic or manual drains, PT, G or NPT threads, MPa, psi or bar scales, and bracket or no-bracket versions. Flow is published as curves rather than a single rating, so we confirm datasheet and sizing figures on request.
Airtac GFR Filter Regulator GFR300C08AJC1 Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08AJC1 |
|---|---|
| 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.
Model Code: Airtac GFR Filter Regulator GFR300C08AJC1
| 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.
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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C0 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR300C08AJC1 Is Used
In-line air prep behind a machine control cabinet
Mounted directly on the machine frame or pipework with no bracket, filtering and regulating 1/4in supply air, with the round MPa dial giving technicians a clear pressure readout.
Pneumatic feed on a jig-and-fixture bench
One filter regulator per bench feeds clamps and swing cylinders; the automatic drain suits a shared shop-air header, and the standard 40 um grade covers general fixture duty.
Setpoint trimming on a tamping or compacting machine
Where operators adjust working pressure between jobs, the external round MPa gauge makes fine setpoint changes straightforward on this 300-size, 1/4in unit.
Is the Airtac GFR Filter Regulator GFR300C08AJC1 the Right Unit?
Match the size and port (200 to 600; here 1/4in PT on the 300 body) to the air your circuit consumes. This version has no mounting bracket, so plan to mount it in-line or on your own plate; bracket versions are available in the series. The external round MPa gauge suits panels where a larger, standalone dial is easier to read; the embedded square gauge is the default. Automatic, manual and differential-pressure drains, the 5 um grade, bar or psi scales, and G or NPT threads are all catalogue options, with PT as the standard thread. Flow is published as curves, not a single rating, so ask us to confirm sizing before ordering.
Quick checklist
- ✓ Body size for your peak flow (See datasheet 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. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
Airtac GFR Filter Regulator GFR300C08AJC1 FAQ
AirTAC publishes filter-regulator flow as curves rather than one rated figure, so there is no single number to quote. Share your application and duty point and we will confirm the datasheet flow data and whether the 300 size with the 1/4in PT port fits, on request.
No. The J in the code means this unit is supplied without a bracket. If you want a bracket included, order the same GFR300 1/4in configuration without the J code; the bracket version is otherwise identical, including the round MPa gauge and automatic drain.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac GFR Filter Regulator GFR300C08AJC1
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.