The AirTAC GC300-08 AirTAC F.R.L. Combination Unit, PT1/4 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 40 µm element, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi).
The GC300-08 is an AirTAC GC-series three-unit F.R.L. combination: a separate air filter, pressure regulator and oil-mist lubricator assembled as one unit. This configuration is size 300 with a PT1/4 (1/4 in) port, a 40 um filter element, a differential-pressure drain on the filter bowl, a standard regulator with a 0.15-0.9 MPa (20-130 psi) adjustment range, and a round gauge with a psi scale. The polycarbonate bowls let you see condensate and oil level at a glance, 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 options from 1/8 to 1 inch, G (BSPP) or NPT thread variants, automatic or manual drain choices, a 5 um filter element option, and gauge scales in MPa, psi or bar. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
| Model | GC300-08 AirTAC F.R.L. Combination Unit, PT1/4 |
|---|---|
| Series | GC300 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT1/4" (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, psi 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. Standard type, regulating 0.15 - 0.9 MPa (20 - 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. |
|---|---|
| 08 | Port size PT1/4". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 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. |
| (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. 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" · 40 µm |
|---|---|
| One size down | GC200 |
| One size up | GC400 |
| Two-unit equivalent | GFC300-08 |
| Build order | Filter → regulator → lubricator |
Installed at the point where the compressor main feeds a workshop distribution line, the filter removes water and particulate, the regulator holds a steady working pressure, and the lubricator carries oil mist downstream to air tools and cylinders.
Mounted on the air drop feeding conveyor diverters, clamps and packaging cylinders, the unit keeps the supply clean, holds a set pressure for consistent cylinder stroking, and lubricates the actuators for smoother daily operation.
Fitted on the pneumatic inlet panel of a purpose-built machine or jig, the combination gives the builder one bracket-mounted assembly that conditions, regulates and lubricates the air before it reaches valves and cylinders, with a psi gauge for local setting.
Start with the size and port: 200, 300, 400 and 600 step up in port size and flow capacity, so match the step to the air demand of the circuit rather than the pipe alone. This size 300 unit carries a 1/4 in PT port; G (BSPP) and NPT threads are catalogue options if your installation uses those standards. For the drain, differential-pressure (fitted here) discharges condensate on pressure differential, while automatic drain (code A) and manual drain (code M) are available. The standard 40 um element suits general supply-air protection; specify the 5 um W grade where finer particulate removal is needed. The gauge is fitted here as a round psi-scale type; embedded square gauges and MPa or bar scales are the other choices. 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 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 rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Tell us your application and required flow, and we will confirm the sizing from the datasheet on request before you order.
This unit's filter bowl uses a differential-pressure drain, which discharges collected condensate when the pressure differential across the drain reaches its threshold. If you prefer continuous unattended drainage, the automatic drain (code A) is available; manual drain (code M) lets an operator empty the bowl on demand. All three are catalogue options on this series.
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.