
The AirTAC AirTAC GFC300-08 Combination Unit (GFC30008ALF3) 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 automatic drain and regulation over 0.15 - 0.9 MPa (20 - 130 psi).
This GFC set is AirTAC's two-piece approach to air preparation: a filter regulator that strips water and particulate from compressed air and sets downstream pressure, plus a separate lubricator delivering an oil mist to air tools. The 300 size here carries PT1/4 ports, an automatic drain that removes condensate on its own, the standard 40 um filter element, the L low-pressure regulator type, and an embedded square gauge scaled in bar. The L suffix marks the low-pressure type; with the automatic drain the quoted adjust range is 0.15-0.9 MPa (20-130 psi), and we confirm the exact low-pressure span on request. Maximum working pressure is 1.0 MPa (145 psi); operating temperature is -5 to 70 C, non-freezing.
It is a genuine AirTAC part, sold by airtacdistr.com in the full 200/300/400/600 size range with 1/8" to 1" ports, PT standard and G (BSPP) or NPT to order. The series offers 40 um or 5 um filtration, differential-pressure, automatic or manual drains, and gauge or no-gauge configurations. Flow is published as curves rather than a single rating, so we confirm datasheet and sizing figures on request.
| Model | AirTAC GFC300-08 Combination Unit (GFC30008ALF3) |
|---|---|
| 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 | Low-pressure 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 | 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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". |
| A | Drain: Automatic drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure 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. |
| (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.
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 |
Filtering, regulating and lubricating air to the doffer and slapper cylinders on a spinning line, with automatic condensate draining through continuous runs.
Preparing supply air for the pneumatic cylinders that raise and close dock shelter doors, keeping moisture and dirt out of the actuator circuit.
Holding a stable, oil-misted supply to the clamp cylinders on a machining-centre fixture panel, with bar-scale pressure visible at a glance.
Match the size - 200, 300, 400 or 600 - to the flow and port your installation needs; this set is size 300 on PT1/4. Automatic drain (fitted here) suits unattended duty; manual drain suits stations someone checks daily; differential-pressure is the catalogue default. Filter grade is 40 um here, the standard choice for general plant air; specify the W code for 5 um where finer filtration matters. The embedded square gauge reads in bar on this model; MPa and psi scales exist too, and N variants omit the gauge. PT is standard; order G or NPT threads where specified. Flow is published as curves, not a single rating - ask us to confirm sizing 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 GFC-series flow as characteristic curves rather than one rated number, so no single figure is quoted here. Send us your application details and we will confirm the datasheet and the relevant curve on request before you order.
The embedded square gauge comes in three scales: 1 = MPa, 2 = psi, 3 = bar. This model reads in bar. Choose the scale your maintenance team and local gauges already work in; N-coded variants are available if you prefer no gauge at all.
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.