The AirTAC GC300-10 AirTAC F.R.L. Combination Unit, G3/8 is a genuine G-series three-unit F.R.L. combination: a separate filter, a separate regulator and a separate lubricator assembled as one air-preparation station. It has PT3/8" ports, a 5 µm element, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi).
The GC300-10 is a three-piece F.R.L. combination: a separate air filter, pressure regulator and oil-mist lubricator assembled as one air-preparation set. This configuration is sized for a 3/8 inch G (BSPP) port, filters to 5 um, and uses a manual drain on the filter bowl, which is polycarbonate (PC) at this size. The regulator is the standard type with an adjustment range of 0.05-0.9 MPa (7-130 psi), and a round psi gauge is fitted. A reverse (check) valve is fitted and a mounting bracket is included.
This is a genuine AirTAC part. The GC series is available in sizes 200, 300, 400 and 600, with port sizes from 1/8 to 1 inch, PT thread as standard and G or NPT as order options, 40 um or 5 um filtration, differential-pressure, automatic or manual drains, and MPa, psi or bar gauge scales. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GC300-10 AirTAC F.R.L. Combination Unit, G3/8 |
|---|---|
| Series | GC300 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT3/8" (G (BSPP) 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 combination has no separate bracket code — the three 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.
| GC300 | G-series F.R.L. combination, 300 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". 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. |
| G | G (BSPP) 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. Constituent units, orderable separately as spares: GF300-10 filter, GR300-10 regulator and GL300-10 lubricator.
A GC is three separate units, so the filter and the regulator can each be serviced or replaced on their own. A GFC is the two-unit set, where filtering and regulating share one body — shorter, but the two functions come as one part. Both filter, regulate and lubricate.
| This model | GC300 · PT3/8" · 5 µm |
|---|---|
| One size down | GC200 |
| One size up | GC400 |
| Two-unit equivalent | GFC300-10 |
| Build order | Filter → regulator → lubricator |
Filtered, regulated and lubricated air at each paint-line drop keeps spray guns fed with clean, moisture-reduced air at a set pressure, with the 5 um element catching fine particulate ahead of the guns.
On a bottling or packaging conveyor, the set supplies the pneumatic pushers and stopper cylinders with regulated pressure and a fine oil mist for smooth, consistent cylinder operation through long shifts.
Feeding a CNC machining centre's tool changer and clamping circuits, the combination protects the valves from water and fine particulate, holds a set working pressure and lubricates the actuators.
Size the unit by the port step and the flow your line needs: sizes 200, 300, 400 and 600 cover 1/8 to 1 inch ports, and the 300 size carries a 3/8 inch port here. Choose the drain to match your maintenance routine: manual drain (this unit) is emptied by hand, automatic drains on their own, and the differential-pressure drain is the catalogue default. Filter grade is 40 um standard or 5 um (code W, fitted here) for finer protection. Gauges are an embedded square gauge as standard or an external round gauge, with MPa, psi or bar scales - this unit carries a round psi gauge. Thread is PT as standard; G (BSPP) and NPT are order options, and this unit is specified with G thread. Flow is published as curves, not a single rated figure, 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 of the regulator. If any branch of the line must stay oil-free, take that branch off before the lubricator, or use a GR300-10 regulator with a GF300-10 filter on that branch.
AirTAC publishes flow for the GC series as curves rather than a single rated figure, so there is no one number we can quote. Send us your line pressure and the air consumption of the equipment you want to run, and we will confirm the sizing against the datasheet curves before you order.
This unit is ordered with a manual drain, which means the filter bowl is emptied by hand at service intervals - a good fit where the unit is checked daily. The GC series is also available with an automatic drain or the differential-pressure drain as the default, and the 5 um element fitted here can be ordered as the 40 um standard grade instead.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 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.