
The AirTAC AirTAC GFC300-08 Combination Unit (GFC30008MC2WK) 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 GFC300 series is a two-unit air preparation set: a filter regulator plus a separate lubricator, so one supply line is filtered, regulated and oiled. This 300-size configuration has PT1/4 ports, a manual-drain bowl on the filter section, a fine 5 um filter element, a round pressure gauge on a psi scale, and a reverse (check) valve fitted. Maximum working pressure is 1.0 MPa (145 psi); with the manual drain fitted, the regulator adjusts from 0.05 to 0.9 MPa (7-130 psi). On the 300 size the polycarbonate bowls give a clear view of condensate and oil level, and the set operates from -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The G series spans 200, 300, 400 and 600 sizes with ports from 1/8 to 1 inch, PT as the standard thread with G (BSPP) and NPT as catalogue options, plus drain, filter-grade, gauge, bracket and reverse-valve choices. AirTAC publishes flow as curves rather than a single rating, so ask us and we will confirm the datasheet and sizing figures for your application on request.
| Model | AirTAC GFC300-08 Combination Unit (GFC30008MC2WK) |
|---|---|
| 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 | Fitted — round, psi 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 0.05 - 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. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 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 |
At spray-gun drops in a paint shop, the set removes water and fine particles, holds a steady set pressure, and mists oil into the supply so gun triggers and atomising-air circuits keep moving smoothly through a shift.
On a machining centre with air-actuated clamps and vise cylinders, the regulator holds the clamping pressure the fixture was set up for, while the lubricator keeps the clamp spools and cylinder seals working over long production runs.
On a carton-forming line, the reject pushers and flap-fold cylinders run thousands of cycles per shift; this unit conditions their supply, protects the valves from water carryover and keeps the cylinders lubricated.
At 300 size with PT1/4 ports this set sits mid-range in the G series; step to 200 or to 400/600 if your circuit needs a different port, and match the size to the air demand of the line. The manual drain here means the bowl is emptied by hand; if the unit is hard to reach, order the A (automatic) or blank (differential-pressure) version instead, noting the regulator adjust range differs by drain type. The 5 um W element suits fine instrument and painting work; the blank option gives the standard 40 um grade. Gauge scale (psi here; bar or MPa to order), thread (PT standard, G or NPT to order) and bracket are selectable. Flow is published as curves, not a single rating, so send us your demand figures and we will confirm sizing against the datasheet before you order.
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 a single rated figure, so we do not quote a number here. Send us your line pressure and air demand, and we will confirm the flow curve and the datasheet for this exact set on request before you order.
The G series offers an embedded square gauge and an optional external round gauge, each with an MPa, psi or bar scale. This code carries the round gauge on a psi scale; square or MPa/bar versions are available to order on the matching code.
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.