The AirTAC GC300-08 AirTAC F.R.L. Combination, PT1/4, 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 differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi).
The GC300-08 is a three-unit F.R.L. combination: a filter, a pressure regulator and an oil-mist lubricator assembled as one air-preparation set. This configuration is a PT1/4 (1/4 in) unit with a 5 um filter element, a differential-pressure drain on the filter bowl, a low-pressure regulator, a round gauge reading in psi, and a reverse (check) valve fitted. The polycarbonate bowls let you see condensate and oil level at a glance, and the mounting bracket is included.
This is a genuine AirTAC part. The GC series is available in sizes 200, 300, 400 and 600, with ports from 1/8 to 1 in, PT, G (BSPP) or NPT threads, 40 um or 5 um filtration, and automatic, manual or differential-pressure drains. 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 rated figure, so ask us to confirm sizing and datasheet figures for your application.
| Model | GC300-08 AirTAC F.R.L. Combination, PT1/4, 5 um |
|---|---|
| Series | GC300 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT1/4" (PT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure 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. 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". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure 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. 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 |
Filtered, regulated and lubricated air for the tool-changer and clamping cylinders on a CNC machining center, with the 5 um element protecting downstream valves from fine particulate.
Stops, diverters and pushers on a bottling conveyor run on steady low-pressure air, while the lubricator's oil mist keeps cylinder seals and pistons moving smoothly shift after shift.
Impact wrenches, nutrunners and air ratchets at an assembly station draw clean, regulated, lubricated air, with the reverse valve preventing backflow in the supply line.
Step through sizes 200/300/400/600 and ports 1/8 to 1 in to match the flow your line needs - the larger the size, the larger the port and flow capacity. Choose the drain: differential-pressure (fitted here), automatic, or manual. Choose the 40 um standard element or the 5 um (W) element fitted on this unit when finer particulate removal matters. Gauge scale is MPa, psi or bar; this unit carries a round gauge reading in psi. Thread is PT as standard, with G (BSPP) and NPT as order options, and the mounting bracket is included. Flow is published as curves, not a single rated figure, so send us your application 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 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 there is no one number we can quote. Tell us your application and required flow and we will confirm sizing against the datasheet on request before you order.
The W code on this model specifies the 5 um element. It removes finer particulate than the 40 um standard element, which suits downstream valves and cylinders that need cleaner air. If your line does not need fine filtration, the 40 um standard element is available in the same size.
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.