
The AirTAC AirTAC GFC300-08 Combination Unit (GFC30008MNK) 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 manual drain and regulation over 0.05 - 0.9 MPa (7 - 130 psi).
GFC30008MNK is an AirTAC G-series two-unit air-preparation set: a filter regulator paired with a lubricator, covering filtration, pressure regulation and oil-mist lubrication in one pair of units. This configuration decodes to PT1/4 ports in the 300 size, the standard 40 um filter element, a manual drain, the standard regulator type, no pressure gauge in the code, and a reverse (check) valve fitted (the K option). The manual-drain regulation range is 0.05-0.9 MPa (7-130 psi).
This is a genuine AirTAC part. The G-series two-unit sets come in sizes 200, 300, 400 and 600, with differential-pressure, automatic or manual drains, 40 um or 5 um filter grades, gauge variants, the K check-valve option and G (BSPP) or NPT thread options. The 300-size bowl is polycarbonate, working pressure is up to 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C. Because AirTAC publishes flow as curves rather than a single rating, we confirm the datasheet figures for your application on request.
| Model | AirTAC GFC300-08 Combination Unit (GFC30008MNK) |
|---|---|
| Series | GFC300 two-unit set |
| Composition | Filter regulator + lubricator (2 units) |
| Port size | PT1/4" (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Not fitted |
| 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 0.05 - 0.9 MPa (7 - 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. |
|---|---|
| 08 | Port size PT1/4". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| N | No pressure gauge (N). |
| (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. |
| 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: GFR300-08 filter regulator and GL300-08 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 · PT1/4" · 40 µm |
|---|---|
| One size down | GFC200 |
| One size up | GFC400 |
| Three-unit equivalent | GC300-08 |
| Build order | Filter regulator first, lubricator last |
Prepares and lubricates the air driving diverters, stoppers and lifters along a conveyor line, with the built-in check valve as part of the station plumbing.
Serves as the filtered, regulated and lubricated supply point for pneumatic clamps on a robotic welding fixture.
Runs the small cylinders that open chip gates and access doors on CNC machine tools from the shop air ring.
Size 300 with PT1/4 ports is the mid step of the G-series; go to 200 for compact drops or to 400/600 for larger machine piping. The K in this code means the check-valve option is built in, so you do not have to plumb a separate check valve into the supply line; the plain variant without K is available if you do not need it. The manual drain suits attended stations, while automatic and differential-pressure drains are orderable variants. The standard 40 um element is fitted here; the W variant gives a 5 um element. Thread is PT as the standard, with G (BSPP) and NPT as catalogue options.
AirTAC gives flow as curves, not a single rated number, so 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 GFR300-08 filter regulator on its own.
AirTAC publishes G-series flow as curves rather than one rated figure, so we do not quote a single number for this model. Tell us your working pressure and required air demand and we will confirm the flow curve and full datasheet figures on request.
It means a reverse (check) valve is fitted as part of this unit, per the AirTAC catalogue. Choose this variant when you want the check-valve function built into the set instead of adding a separate valve in the line; the same set without K is available.
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.