Airtac GFR Filter Regulator GFR300C08MC1
The AirTAC GFR Filter Regulator GFR300C08MC1 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 GFR300C08MC1
This GFR-series unit is a filter regulator: a 40 um filter element and an air pressure regulator combined in one body with a single polycarbonate drain bowl. This PT1/4 (1/4 in) configuration uses the M code manual drain - you bleed condensate by hand, which suits intermittent or attended duty and also widens the regulator adjustment range to 0.05-0.9 MPa (7-130 psi). The C1 suffix fits an external round gauge with an MPa scale for direct pressure indication, and no J in the code means the mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi); operating temperature is -5 to 70 C.
This is a genuine AirTAC part from the G series, available in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, plus differential-pressure or automatic drain versions, a 5 um element option, gauge and scale choices and G or NPT thread variants. G-series flow is published as curves rather than a single rated figure, so request the datasheet and we will confirm the figures for your application on request.
Airtac GFR Filter Regulator GFR300C08MC1 Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08MC1 |
|---|---|
| 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 GFR300C08MC1
| 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 GFR300C08MC1 Is Used
Maintenance shop air outlet
A regulated, filtered 1/4 in outlet at a maintenance bench, where the manual drain is emptied at the end of each shift and the round gauge shows set pressure.
Trailer and tail-lift test rigs
Supplying regulated test air on a commercial-vehicle service rig for brake and body-control circuits, with the MPa gauge giving a clear set-point reading.
Single-machine pressure trim station
Trimming working pressure on an individual machine's 1/4 in air leg, where the manual drain suits shift-based operation and the wide 0.05-0.9 MPa range helps low set points.
Is the Airtac GFR Filter Regulator GFR300C08MC1 the Right Unit?
Pick the manual drain (M) when the unit is accessible and the line runs intermittently, so an operator can drain the bowl; choose differential-pressure or automatic (A) for unattended continuous duty, noting that those versions carry a 0.15-0.9 MPa (20-130 psi) range while manual drain widens it to 0.05-0.9 MPa (7-130 psi). Size 300 with a 1/4 in PT port suits 1/4 in pipework - size against the published flow curve for your demand. Standard filtration is 40 um, with the W code giving 5 um. The C1 gauge is the external round type on an MPa scale (other scale codes are available), the bracket is included, and PT is the standard thread with G (BSPP) and NPT to order. Since flow is published as curves, not a single rating, 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 GFR300C08MC1 FAQ
AirTAC publishes G-series flow as performance curves rather than a single rated figure, so there is no one number we can state. Ask us for the datasheet and we will confirm the flow curve and size for your pressure and line conditions on request.
M is the manual drain - you empty condensate by hand, and this version carries the wider 0.05-0.9 MPa (7-130 psi) regulator range. C1 fits an external round gauge with an MPa scale. With no J in the code, the mounting bracket is included; the filter element is the 40 um standard.
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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 GFR Filter Regulator GFR300C08MC1
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.