
The AirTAC AirTAC GFC300-08 Combination Unit (GFC30008MNWK) 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 5 µm element, a manual drain and regulation over 0.05 - 0.9 MPa (7 - 130 psi).
The AirTAC GFC two-unit set combines a filter-regulator and a lubricator, so one assembly filters, regulates and oil-mist lubricates compressed air. This GFC30008MNWK is built for 1/4 in. PT ports, carries a manual-drain bowl, a 5 um fine filter element, no gauge, and a reverse/check valve that stops air pushing back through the set. With manual drainage the regulator adjusts from 0.05 to 0.9 MPa (7-130 psi).
It is a genuine AirTAC part, rated for compressed air at up to 1.0 MPa (145 psi) inlet and -5 to 70 C, non-freezing. The GFC series spans sizes 200, 300, 400 and 600 with alternative drain types, 40 um or 5 um elements, gauge options and G (BSPP) or NPT threads. Flow is published as curves rather than a single rating, so we confirm flow and full datasheet figures on request.
| Model | AirTAC GFC300-08 Combination Unit (GFC30008MNWK) |
|---|---|
| Series | GFC300 two-unit set |
| Composition | Filter regulator + lubricator (2 units) |
| Port size | PT1/4" (PT thread) |
| Filtering grade | 5 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. |
| W | Filtering grade 5 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" · 5 µm |
|---|---|
| One size down | GFC200 |
| One size up | GFC400 |
| Three-unit equivalent | GC300-08 |
| Build order | Filter regulator first, lubricator last |
Feeding spray guns in a body-shop booth: the 5 um element limits particulate in the finish air, the lubricator carries a light oil mist to the gun, and the manual drain lets an operator clear condensate between jobs.
Regulated air to a fixture-clamp circuit on a CNC mill; the reverse-flow valve stops air bleeding back through the set if upstream supply dips mid-cycle, helping the circuit hold its setting.
Supplying quarter-turn actuators on a process skid: the regulator sets the actuator pressure, the 5 um element protects the positioner, and the check valve blocks reverse flow through the set.
Size 300 sits mid-range in the GFC series (sizes 200, 300, 400 and 600); step up or down to match the port and air demand of the circuit. This set is 1/4 in. PT with a manual drain chosen in the code, which suits supervised or intermittent duty where an operator drains the bowls on a schedule; automatic (A) and differential-pressure versions cover continuous duty, and manual drainage widens the regulator's low end to 0.05 MPa (7 psi). The W element gives 5 um filtration against the 40 um standard, and the reverse-flow valve suits clamping or holding circuits. Thread is PT as standard, with G (BSPP) and NPT available to order. Flow is published as curves, not a single rating, 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 in the datasheet, not as a single rated figure, so we do not quote a number on the page. Tell us your inlet pressure and air demand and we will confirm the flow curve and sizing from the datasheet on request before you order.
M in the code sets a manual-drain bowl on the filter-regulator: an operator opens the drain to clear condensate, which suits intermittent or supervised duty. With manual drainage the regulator adjusts from 0.05 MPa (7 psi), lower than the 0.15 MPa (20 psi) floor of the differential-pressure default. Automatic (A) and differential-pressure versions are available in the series.
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.