The AirTAC GC300-15G AirTAC F.R.L. Combination, G1/2 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 PT1/2" ports, a 5 µm element, a automatic drain and regulates 0.15 - 0.9 MPa (20 - 130 psi).
The AirTAC GC300 is a three-unit F.R.L. combination: a filter, a regulator and a lubricator assembled as one unit, so the compressed air is cleaned of water and particulate, regulated to a set pressure, and lubricated in a single installation. This configuration is built with G1/2 ports, a 5 um filter element, an automatic drain on the filter bowl, a built-in square gauge reading in psi, and a mounting bracket included. The bowls are polycarbonate (only size 600 uses aluminium alloy). Maximum inlet pressure is 1.0 MPa (145 psi), the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), and the operating 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 PT, G or NPT threads, 40 um standard or 5 um (W) filtration, differential-pressure, automatic or manual drains, and gauge scales in MPa, psi or bar. Flow figures are published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GC300-15G AirTAC F.R.L. Combination, G1/2 |
|---|---|
| Series | GC300 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT1/2" (G (BSPP) thread) |
| Filtering grade | 5 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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, 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. |
|---|---|
| 15 | Port size PT1/2". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic 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). |
| 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. |
| (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: GF300-15 filter, GR300-15 regulator and GL300-15 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 · PT1/2" · 5 µm |
|---|---|
| One size down | GC200 |
| One size up | GC400 |
| Two-unit equivalent | GFC300-15 |
| Build order | Filter → regulator → lubricator |
Feeding workstations on a car assembly line, where one GC300 at the drop cleans the supply, holds a steady regulated pressure to the tools and cylinders, and carries oil mist to keep air tools lubricated through the shift.
Supplying the cylinders and grippers on a carton packaging conveyor, where the 5 um element protects seals from particulate and water, the regulator holds consistent actuation pressure, and the lubricator extends cylinder life.
Conditioning the air feed to a paint spray booth, where clean, dry, correctly regulated and lightly oiled supply air supports a stable finish and protects the spray gun's air motor between services.
Size and port set the air capacity: this GC300 carries 1/2 in ports; step up to GC400 or GC600 for larger circuits or down to GC200 for compact ones, always matching the port size to the line. Drain choice depends on maintenance style: the automatic drain fitted here expels condensate without attention, while manual and differential-pressure drain versions suit scheduled checks. Filtration is 5 um on this unit (W code); 40 um is the standard grade where finer filtration is not required. The embedded square gauge reads in psi, with MPa and bar scales as alternatives and an external round gauge optional. The thread on this model is G; PT is the standard and NPT is an orderable option. 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 GR300-15 regulator with a GF300-15 filter on that branch.
Flow for the GC series is published as curves rather than a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the datasheet figures and check the sizing against your air demand before you order.
This unit is fitted with an automatic drain, which expels collected condensate from the filter bowl without anyone opening it, suiting installations that are not checked daily. The GC series is also available with manual or differential-pressure drains if your maintenance routine prefers scheduled draining.
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.