Airtac GFR Filter Regulator GFR300C08JC1
The AirTAC GFR Filter Regulator GFR300C08JC1 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 GFR300C08JC1
The AirTAC GFR300C08JC1 is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 300-size unit is tapped PT 1/4 in with a 40 um standard element and a differential-pressure drain that vents condensate as the element loads up. The C1 code brings an external round pressure gauge scaled in MPa, and the J code means the unit is supplied without a mounting bracket, so it hangs on its ports or drops into an existing arrangement. Regulation range with the differential-pressure drain is 0.15-0.9 MPa (20-130 psi).
This is a genuine AirTAC part with a maximum working pressure of 1.0 MPa (145 psi) and an operating range of -5 to 70 C, non-freezing. The GFR family is offered in 200, 300, 400 and 600 sizes, ports from 1/8 to 1 in, G (BSPP) and NPT threads, a 5 um element option (W), automatic or manual drains, and square-gauge versions. Flow is published as curves rather than a single rating, so we confirm datasheet figures for your application on request.
Airtac GFR Filter Regulator GFR300C08JC1 Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08JC1 |
|---|---|
| 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 GFR300C08JC1
| 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 GFR300C08JC1 Is Used
Pneumatic control panel build
Direct filter regulator for a control panel manifold where no mounting bracket is wanted and the round MPa gauge sits at eye level.
Maintenance drop retrofits
Replacing an aged regulator at a plant air drop where the existing bracket stays in place and the new unit mounts directly on its ports.
Trailer-mounted tool station
Conditioning air for tool stations on a service trailer, where compact port mounting and an external round gauge suit the tight layout.
Is the Airtac GFR Filter Regulator GFR300C08JC1 the Right Unit?
Use the J (no bracket) version when the unit mounts on its 1/4 in PT ports or replaces a unit on an existing bracket; a bracket-included version is available if you need one. Choose the 40 um element for general plant air or order the W suffix for 5 um, and pick an automatic or manual drain if the differential-pressure drain does not suit the duty. This code carries the external round MPa gauge; the embedded square gauge, plus psi or bar scales, are catalogue options, as are G (BSPP) and NPT threads. Flow is published as curves, not a single rating, 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 GFR300C08JC1 FAQ
We do not state a single rated flow because AirTAC publishes GFR300 flow as curves across pressure rather than one figure. Give us your inlet pressure and demand and we will confirm the sizing from the datasheet on request.
J means the unit is supplied without a mounting bracket, so it mounts on its PT 1/4 in ports or onto existing hardware; a bracket version can be ordered. C1 means an external round pressure gauge scaled in MPa instead of the embedded square gauge.
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 GFR300C08JC1
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.