
The AirTAC AirTAC GFC300-10 Combination Unit (GFC30010AF3K) 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).
GFC30010AF3K is a genuine AirTAC two-unit air-treatment set in the G300 series: a filter-regulator plus a lubricator piped as one assembly, with the K position specifying a reverse (check) valve fitted. This configuration combines 3/8 inch PT ports, automatic drain on the polycarbonate filter bowl, standard 40 um filtration, a square pressure gauge scaled in bar and the check-valve option. Maximum inlet pressure is 1.0 MPa (145 psi); with the automatic drain specified, the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi). Operating temperature is -5 to 70 C (non-freezing); medium is compressed air only.
The unit belongs to AirTAC's G series, which covers sizes 200 to 600 with ports from 1/8 to 1 inch, PT, G (BSPP) or NPT threads, three drain types, 40 um or 5 um elements and a choice of gauge scales. Flow is published as curves rather than a single rated figure, so we confirm datasheet figures and sizing on request.
| Model | AirTAC GFC300-10 Combination Unit (GFC30010AF3K) |
|---|---|
| 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 — square, 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). |
| F | Gauge shape: Square. 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 |
Feeds workholding clamps with filtered, regulated, lubricated air, with the fitted check valve in the treatment line as specified by the K code.
Conditions the bench supply for nut-runners and pneumatic presses, keeping set pressure and oil mist stable at each station.
Serves retractable hose reels in a plant maintenance bay, supplying clean, regulated, oil-misted air to whatever tool is plugged in.
Pick this K code when you want the G300 two-unit set with a check valve already fitted, alongside the 3/8 inch PT port and automatic-drain filter bowl. If the check valve is not wanted, the same unit is ordered without the K position. Filtration is the 40 um standard (5 um on the W code), the square gauge is bar-scaled with MPa and psi scales as options, and PT is the standard thread with G (BSPP) and NPT orderable.
Flow is given as curves, not a single rating, so ask us to confirm the G300 sizing against your working pressure and demand 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 publishes flow for the G300 set as characteristic curves rather than a single rated figure, so we do not state a number here. Share your working pressure and air demand and we will confirm the datasheet curves and correct size on request.
The K specifies that a reverse (check) valve is fitted on this unit. If your circuit does not need it, the identical set is available under the code without K, keeping the same G300 frame, 3/8 inch PT ports, automatic drain, 40 um element and bar-scaled square gauge.
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.