AirTAC GFC300-08 Combination Unit (GFC30008C3)
The AirTAC AirTAC GFC300-08 Combination Unit (GFC30008C3) is a genuine G-series two-unit air-preparation set: a filter regulator that filters and regulates in one body, coupled to a lubricator. Two bodies do the work of three, with PT1/4" ports, a 40 µm element, a differential-pressure drain and regulation over 0.15 - 0.9 MPa (20 - 130 psi).
- TypeTwo-unit set (F.R. + L.)
- Port sizePT1/4"
- 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 GFC300-08 Combination Unit (GFC30008C3)
The GFC30008C3 is a two-piece air-treatment set from AirTAC's G series: a size 300 filter regulator paired with a size 300 lubricator on 1/4 in PT ports. The filter stage strips water and 40 um particulate into a polycarbonate bowl with a differential-pressure drain, the regulator holds downstream pressure anywhere in its 0.15-0.9 MPa (20-130 psi) adjust range, and the lubricator meters oil mist to downstream tooling. Maximum inlet pressure is 1.0 MPa (145 psi); operating temperature is -5 to 70 C, non-freezing. This configuration includes an external round gauge reading in bar.
This is a genuine AirTAC part. The G two-piece sets are offered in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options include manual or automatic drains, a 5 um element (code W), gauge scales in MPa, psi or bar, and G (BSPP) or NPT threads in place of PT. Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application.
AirTAC GFC300-08 Combination Unit (GFC30008C3) Technical Specifications
| Model | AirTAC GFC300-08 Combination Unit (GFC30008C3) |
|---|---|
| Series | GFC300 two-unit set |
| Composition | Filter regulator + lubricator (2 units) |
| Port size | PT1/4" (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard 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, bar 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). The set has no separate bracket code — the two units couple together with their own mounting hardware. 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 GFC300-08 Combination Unit (GFC30008C3)
| GFC300 | G-series two-unit set, 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) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 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, gauge, shape, scale, grade, thread, reflux — there is no bracket position on a combination set. Constituent units, orderable separately as spares: GFR300-08 filter regulator and GL300-08 lubricator.
Size Class & How It Differs From GC
- GFC200PT1/8" - PT1/4"
- GFC300PT1/4" - PT1/2"
- GFC400PT3/8" - PT1/2"
- GFC600PT3/4" - PT1"
A GFC is two units because filtering and regulating share one body. A GC is three separate units — filter, regulator and lubricator. Both filter, regulate and lubricate; the GFC is the shorter assembly, the GC keeps the filter and regulator serviceable as separate bodies.
| This model | GFC300 · PT1/4" · 40 µm |
|---|---|
| One size down | GFC200 |
| One size up | GFC400 |
| Three-unit equivalent | GC300-08 |
| Build order | Filter regulator first, lubricator last |
Where the AirTAC GFC300-08 Combination Unit (GFC30008C3) Is Used
Air tools at an automotive assembly bench
Feeds impact drivers, ratchets and air screwdrivers at a final-assembly station. The filter removes water and grit from the shop-air ring main, the regulator sets tool pressure for consistent fastening torque, and the lubricator mists oil into the tool motors.
Actuation of pneumatic control valves in a process skid
Supplies the positioners and piston actuators on a water-treatment skid. Regulated pressure holds valve stroke response steady, the 40 um element keeps pilot orifices clear, and oil mist protects the actuator internals.
Trailer air bag and door assist circuits at a loading dock
Runs the lift-axle bags and roll-door assist cylinders on fleet trailers during depot servicing. Clean, regulated, lubricated air keeps the cylinders cycling freely and protects the small-bore valves in the assist circuits.
Is the AirTAC GFC300-08 Combination Unit (GFC30008C3) the Right Set?
Size 300 with 1/4 in PT ports is the mid step of the G range; size up to 400 if your demand approaches the top of what a 300 passes. Drain choice: differential-pressure (this code, standard), automatic (A) for unattended drainage, or manual (M) - manual-drain versions widen the regulator adjust range to 0.05-0.9 MPa (7-130 psi). Element grade is 40 um standard or 5 um with code W. This code carries a round gauge in bar; psi and square-MPa variants are separate codes, and gauges on regulator units come as embedded square or optional external round. Thread is PT as standard, with G (BSPP) and NPT as catalogue options; a mounting bracket is optional. 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 (PT1/4" here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Two-unit (GFC) or three-unit (GC) layout
- ✓ Oil mist acceptable downstream
Installation & Maintenance Notes
- check Install with the airflow arrow: filter regulator first, lubricator last.
- check Mount vertically, bowls down.
- 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 the oil level.
- check Keep the set above freezing (-5 to +70 °C, unfreeze).
The PC bowls must not be cleaned with solvents — wipe them with a dry cloth. The lubricator adds an oil mist downstream, so if any branch must stay oil-free, take that branch off before the lubricator or use a GFR300-08 filter regulator on its own.
AirTAC GFC300-08 Combination Unit (GFC30008C3) FAQ
AirTAC publishes G-series flow as performance curves rather than a single rated figure, so no single number is quoted here. Share your line pressure and demand and we will confirm the correct size from the datasheet curve on request.
Both are catalogue options on G units with a regulator. This code (C3) specifies the external round gauge with a bar scale, which suits crews working to metric pressure references; the embedded square gauge and MPa or psi scales are ordered under their own codes (F1, C2, and so on).
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