The AirTAC AirTAC GC300-08 F.R.L. Combination, G1/4, 5 um 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 PT1/4" ports, a 5 µm element, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi).
The AirTAC GC300 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 carries a 1/4 in port (G thread, with PT as the standard thread and G/NPT as order options), a 5 um filter element (code W) for finer particulate removal than the standard 40 um grade, a manual drain on the filter bowl, a low-pressure type regulator, an embedded square gauge scaled in psi, and a reverse/check valve fitted. The maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GC series is available in sizes 200, 300, 400 and 600 with a choice of ports, threads, drain types, filter grades, gauge scales and regulator types, and a mounting bracket is included with this unit. Flow is published in the catalogue as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | AirTAC GC300-08 F.R.L. Combination, G1/4, 5 um |
|---|---|
| Series | GC300 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT1/4" (G (BSPP) thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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. |
|---|---|
| 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)). |
| 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. |
| 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: GF300-08 filter, GR300-08 regulator and GL300-08 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 · PT1/4" · 5 µm |
|---|---|
| One size down | GC200 |
| One size up | GC400 |
| Two-unit equivalent | GFC300-08 |
| Build order | Filter → regulator → lubricator |
Point-of-use preparation on a factory assembly line: the set filters water and 5 um particulate from the drop, holds a low regulated pressure for the station and feeds a controlled oil mist to the air tools downstream.
Feeding a pneumatic press or clamping fixture where the circuit calls for a low regulated pressure, clean 5 um air and light lubrication for the cylinder seals, with the check valve holding the setpoint if supply dips.
Mounted at the outlet of a workshop or vehicle-service compressor, giving each branch a filtered, regulated and lubricated supply for impact wrenches, blow guns and small air cylinders.
Size 300 with a 1/4 in port suits lines where the compressor supply is modest but you still want full filter-regulate-lubricate preparation; step up to size 400 or 600 where the port and flow demand grow. Because flow is published as curves and not a single rating, ask us to confirm sizing against your air consumption before ordering. This unit is the low-pressure regulator type, so confirm the control band suits your circuit - the exact low-pressure range is not published in the sheet we work from. The 5 um element (code W) is the finer choice over the standard 40 um grade; the manual drain means an operator opens the bowl drain at intervals rather than relying on an automatic or differential-pressure arrangement. The square gauge is scaled in psi (MPa and bar scales are also available), the reverse/check valve is fitted, the thread here is G with PT as the standard and NPT orderable, and a mounting bracket is included.
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 GR300-08 regulator with a GF300-08 filter on that branch.
AirTAC publishes flow for the GC series as curves in the catalogue, not as a single rated number, so we will not quote a figure that is not on the datasheet. Tell us your air consumption and working pressure and we will confirm the sizing from the datasheet on request before you order.
The filter bowl on this GC300 is the manual-drain type, so condensate is drained by opening the drain at service intervals rather than automatically. The element is the 5 um grade (code W), finer than the standard 40 um element, and the bowl is polycarbonate on size 300. The regulator is the low-pressure type with a square gauge scaled in psi, and a reverse/check valve is fitted.
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.