Airtac GFR Filter Regulator GFR300C08AJF1
The AirTAC GFR Filter Regulator GFR300C08AJF1 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 GFR300C08AJF1
AirTAC's GFR series combines a filter and a pressure regulator in one body: a 40 um element with a drain bowl removes water and particulate from compressed air, and the regulator section sets downstream pressure over 0.15-0.9 MPa (20-130 psi) on this automatic-drain version. This GFR300C08AJF1 is the size 300 frame with PT1/4 (1/4 in.) ports, an automatic drain, and the square pressure gauge on the MPa scale (F1); no check valve is fitted and the J code specifies the unit without a mounting bracket. The size 300 bowl is polycarbonate (PC).
It is a genuine AirTAC part from the G series, which spans sizes 200 to 600 with ports from 1/8 in. to 1 in., PT as the standard thread and G (BSPP) or NPT as catalogue options. Medium is compressed air only; maximum working pressure is 1.0 MPa (145 psi) and operating temperature is -5 to 70 C. Flow is published as curves rather than a single rating, so we confirm datasheet figures for your duty on request.
Airtac GFR Filter Regulator GFR300C08AJF1 Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08AJF1 |
|---|---|
| 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 GFR300C08AJF1
| 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 GFR300C08AJF1 Is Used
Point-of-use compressor drop
Installed at the point of use on a compressor drop in a maintenance shop, giving technicians a locally adjusted, water-reduced supply for impact tools and blow guns.
Injection moulding air assist
Supplies regulated air for ejection and core-pull assist on an injection moulding machine, with the square MPa gauge letting setters verify setting pressure at a glance.
Joinery shop pneumatic nailers
Feeds framing nailers and staplers in a woodworking shop; the 40 um element keeps compressor moisture out of the tools and the regulator sets driving pressure per fastener length.
Is the Airtac GFR Filter Regulator GFR300C08AJF1 the Right Unit?
The decodable choices: size and port (200/300/400/600 frames on 1/8 in. to 1 in. ports; this is 300 on PT1/4), drain type (automatic as coded, with manual and differential-pressure alternatives), filter grade (standard 40 um here; 5 um W is the finer option), gauge style and scale (square gauge, MPa here; a round external gauge is the alternative), and thread (PT standard; G and NPT orderable). AirTAC publishes flow as curves rather than one rated figure, so ask us to confirm sizing against your application 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 GFR300C08AJF1 FAQ
We confirm flow from the datasheet on request, because AirTAC publishes G-series performance as flow curves rather than a single rated figure. Give us your supply pressure and air demand and we will check this 300 / PT1/4 unit against the application.
The F1 code specifies the square pressure gauge on the MPa scale. If you would rather read a round dial at arm's length, the C1-suffixed versions of the same unit carry the external round gauge instead - same 300 frame, PT1/4 ports, automatic drain and 40 um element.
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 GFR300C08AJF1
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.