The AirTAC GC300-10 AirTAC F.R.L. Combination, PT3/8, 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 PT3/8" ports, a 5 µm element, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi).
The GC300-10 is an AirTAC GC-series three-unit F.R.L. combination: a separate air filter, pressure regulator and lubricator assembled as one filter-regulate-lubricate package for compressed-air lines. This configuration is built on the 300 size with a PT3/8 (3/8 in) PT port. The filter element is the fine 5 um grade (the W option), so it strips water and particulate down to a finer level than the standard 40 um element before air reaches the regulator. The regulator is the low-pressure type, and its exact adjustment range is not published in the materials we hold, so we confirm it against your set pressure on request. The unit ships with the differential-pressure drain as standard, an embedded square gauge with a psi scale, and a mounting bracket. 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 family is offered in 200, 300, 400 and 600 sizes with port sizes from 1/8 in to 1 in, a choice of PT, G (BSPP) or NPT thread, differential-pressure, automatic or manual drains, 40 um or 5 um filtration, standard or low-pressure regulation, and MPa, psi or bar gauge scales. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GC300-10 AirTAC F.R.L. Combination, PT3/8, 5 um |
|---|---|
| Series | GC300 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT3/8" (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 — 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. 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. |
|---|---|
| 10 | Port size PT3/8". 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). |
| 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. |
| (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: GF300-10 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" · 5 µm |
|---|---|
| One size down | GC200 |
| One size up | GC400 |
| Two-unit equivalent | GFC300-10 |
| Build order | Filter → regulator → lubricator |
Feeds spray guns in a body-shop booth where the 5 um element polishes the air supply, the regulator holds a steady gun pressure and the lubricator is set to zero feed for oil-free finishing air.
Supplies the carton-sealing and wrapping stations on a packaging line, giving each machine one point where water and dust are removed, pressure is set and moving air cylinders receive oil mist.
Conditions the supply to clamps, air chucks and impact drivers at an assembly cell, with the low-pressure regulator suiting circuits that work below the standard regulator band.
Start with the port step: the 300 size carries a 3/8 in port, and moving up or down a size changes both the port and the flow path, so match the size to the line and the demand of the downstream cylinders, valves or tools. On this unit the choices are already fixed by the code: 5 um filtration instead of the standard 40 um, the low-pressure regulator type, the differential-pressure drain, and a square gauge reading in psi. If your line runs above the low-pressure band, the standard-type regulator is the alternative; if you need coarser, more economical filtration, the non-W version carries the 40 um element. The differential-pressure drain bleeds the bowl automatically as flow passes, with no daily manual draining, but it needs a meaningful pressure differential to work well. Thread is PT as standard; G (BSPP) and NPT are catalogue options you can order instead. A bracket is included for mounting.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, so we do not quote a flow figure here. Send us your line pressure, set pressure and air demand and we will confirm the 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 GR300-10 regulator with a GF300-10 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 number here. Tell us your inlet pressure, set pressure and air demand, and we will confirm the flow and datasheet figures for this exact unit on request before you order.
The differential-pressure drain is the standard option on the GC filter and needs no daily attention: it bleeds condensate from the bowl automatically as air flows through, using the pressure drop across the element. It suits continuously running lines; if the unit sits idle for long periods or flow is very low, the automatic (A) or manual (M) drain versions are the alternatives to discuss when ordering.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.