The AirTAC GC300-10 AirTAC F.R.L. Combination Unit, PT3/8 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 40 µm element, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi).
The AirTAC GC300-10 is a three-piece F.R.L. combination that filters, regulates and lubricates compressed air from a single assembled set: a separate filter, a pressure regulator and an oil-mist lubricator. This size 300 unit is fitted with a 3/8 in PT port, the standard 40 um filter element for general-purpose water and particulate removal, and a manual drain on the filter bowl, so condensate is released when an operator opens the drain rather than automatically. The regulator is the standard type with an adjustment range of 0.05-0.9 MPa (7-130 psi), and this configuration carries a round pressure gauge reading in psi, a reverse/check valve, and a mounting bracket.
This is a genuine AirTAC part. The GC combination is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options include automatic or differential-pressure drains, a 5 um filter element (code W), square or round gauges with MPa, psi or bar scales, and G (BSPP) or NPT threads in place of the PT standard. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GC300-10 AirTAC F.R.L. Combination Unit, PT3/8 |
|---|---|
| Series | GC300 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT3/8" (PT thread) |
| Filtering grade | 40 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. |
| (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. |
| 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" · 40 µm |
|---|---|
| One size down | GC200 |
| One size up | GC400 |
| Two-unit equivalent | GFC300-10 |
| Build order | Filter → regulator → lubricator |
Feeds filtered, regulated and lubricated air to spray booths and air-driven paint equipment on an automotive refinishing line, where the 40 um element removes water and pipe scale and the lubricator mists oil to downstream air tools.
Conditions the air feeding clamps, air chucks and pneumatic tool circuits on a CNC machining cell, with the regulator holding a steady set pressure and the check valve holding downstream pressure if the main supply drops.
Supplies treated air to cylinders and air cylinders driving cartoners, case packers and conveyor diverters on a packaging line, where the manual drain suits a shift-based maintenance routine and the psi gauge lets operators verify set pressure at a glance.
Start with the size and port: this GC300-10 is the size 300 frame with a 3/8 in PT port, one step up from the 1/4 in size 200 units, so step up to size 400 or 600 if your line demands more flow - we can confirm the flow curves against your demand before you order. Drain choice matters in practice: this unit has a manual drain, which suits attended installations, while automatic (code A) or differential-pressure (default) drains suit unattended duty. The 40 um element is the standard grade; specify 5 um (code W) for finer protection. The gauge here is round with a psi scale; square gauges and MPa or bar scales are alternatives. PT is the standard thread, with G (BSPP) and NPT available as order options, 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 GR300-10 regulator with a GF300-10 filter on that branch.
AirTAC publishes flow for the GC series as curves, not as a single rated figure, so we do not quote a rated l/min or SCFM number. Send us your operating pressure and air demand and we will confirm the flow from the datasheet curves for this size 300, 3/8 in unit on request.
The M in the code GC30010MC2K specifies a manual drain on the filter bowl: condensate is released when an operator opens the drain, which suits attended installations with a regular maintenance routine. If the unit will run unattended, the same size is available with an automatic drain (code A) or the differential-pressure drain that is the catalogue default - ask us to quote the variant you need.
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.