
The AirTAC AirTAC GFC300-10 Combination Unit (GFC30010AC3K) 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 PT3/8" ports, a 40 µm element, a automatic drain and regulation over 0.15 - 0.9 MPa (20 - 130 psi).
GFC30010AC3K is a genuine AirTAC G-series two-unit set: a filter regulator plus a lubricator, covering filtration, pressure regulation and oil-mist lubrication of compressed air in one pair. This 300-size configuration carries a PT 3/8 in port, the standard 40 um filter element, an automatic drain on the polycarbonate filter bowl, a round external pressure gauge scaled in bar, and a reverse/check valve fitted on the regulator. Maximum working pressure is 1.0 MPa (145 psi); with automatic drain the regulator range is 0.15-0.9 MPa (20-130 psi), and temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part from the G series, offered in 200, 300, 400 and 600 sizes with a choice of drains, 40 um or optional 5 um filtration, gauge scales in MPa, psi or bar, and PT, G (BSPP) or NPT threads. AirTAC publishes flow as curves rather than a single figure, so we confirm datasheet and flow values for your application on request.
| Model | AirTAC GFC300-10 Combination Unit (GFC30010AC3K) |
|---|---|
| Series | GFC300 two-unit set |
| Composition | Filter regulator + lubricator (2 units) |
| Port size | PT3/8" (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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, bar scale |
| Reflux valve | Fitted (reverse flow permitted) |
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.
| GFC300 | G-series two-unit set, 300 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic 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. |
| K | Reverse-flow (reflux) valve fitted. |
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: GFR300-10 filter regulator and GL300-10 lubricator.
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 · PT3/8" · 40 µm |
|---|---|
| One size down | GFC200 |
| One size up | GFC400 |
| Three-unit equivalent | GC300-10 |
| Build order | Filter regulator first, lubricator last |
Installed on the supply to a small pneumatic press: the reverse/check valve helps hold the regulated circuit if the plant main dips, while the filter regulator and lubricator condition the cylinder air.
Mounted ahead of workholding clamps on a machining fixture, where maintained downstream pressure during supply fluctuations supports safe clamping and the bar gauge gives operators a clear setpoint readout.
Feeding gripper and tooling circuits on a robot cell: 40 um filtration and regulation protect the valve pack and the lubricator services the gripper actuators.
Pick this K-suffixed code when you want the reverse/check valve fitted as standard - useful where a supply-side pressure dip must not empty the regulated downstream circuit. The 300 size and 3/8 in PT port suit mid-range demand; scale the size up or down per the flow curves. This version uses the standard 40 um element, an automatic drain and a bar-scaled round gauge; MPa or psi scales and 5 um filtration sit on neighbouring codes, and G (BSPP) or NPT threads are order options.
Because rated flow appears only as curves, ask us to confirm sizing against your application before ordering.
Quick checklist
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 GFR300-10 filter regulator on its own.
AirTAC states G-series flow as curves rather than a single rated number, so we avoid quoting one here. Share your inlet pressure and downstream demand and we will confirm the sizing from the datasheet on request.
K fits a reverse/check valve on the regulator side of the set. The rest of the code decodes as the 300 size, 3/8 in PT port, automatic drain (A), round gauge in bar (C3) and standard 40 um filtration - the same specification as GFC30010AC3 plus the check valve.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
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.