The AirTAC GC300-08 AirTAC F.R.L. Combination, G1/4, 5 um, Manual Drain 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi).
The AirTAC GC300-08 is a three-piece F.R.L. combination: a separate air filter, pressure regulator and oil-mist lubricator assembled as one air-preparation set. This configuration is the 300 size with a G1/4 (BSPP) port, fitted with the fine 5 um filter element (code W), a manual drain on the filter bowl, a low-pressure type regulator, a round external gauge reading in psi, and a reverse/check valve. The polycarbonate bowls let you see condensate and oil level at a glance, and the mounting bracket is included. Note that PT is the standard thread for this series; G and NPT are catalogue order options, specified here as G.
This is a genuine AirTAC part. The GC family is offered in sizes 200, 300, 400 and 600 with matching ports, a choice of differential-pressure, automatic or manual drains, 40 um standard or 5 um fine filtration, gauge scale options, and G or NPT thread variants. Rated flow for this series is published as curves rather than a single figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GC300-08 AirTAC F.R.L. Combination, G1/4, 5 um, Manual Drain |
|---|---|
| Series | GC300 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT1/4" (G (BSPP) thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | 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. 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 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. |
| G | G (BSPP) 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 |
Feeds a carton-forming and sealing machine's valve island with filtered, regulated and lubricated air, protecting cylinders and seals on a high-cycle packaging line.
Supplies a fixture-clamping circuit on a milling or drilling cell, where the 5 um element keeps fine particulate out of clamp cylinders and the lubricator mists the actuator seals.
Prepares air for sorter gates and diverter cylinders on a distribution conveyor, with the low-pressure regulator suiting circuits that run at reduced set pressure.
Start with the size and port: 300 size carries a 1/4 in port here, and the step up to 400 or 600 buys more flow capacity while 200 suits compact drops - match the step to the air demand of the circuit. Choose the drain to suit access: manual drain (as on this unit) needs someone to open it, automatic drain handles condensate unattended, and differential-pressure drain is the series default. Filtration is 40 um standard; this unit carries the 5 um W element for finer protection downstream. The regulator here is the low-pressure type; its exact adjustment range is not published, so confirm it with us. Gauge scale is selectable (MPa, psi or bar) and this unit ships with the round external gauge in psi. Thread is PT as standard with G and NPT as order options - this unit is the G (BSPP) variant. Flow for the series 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 number here. Tell us your application and required flow, and we will confirm the datasheet figures for this 300-size, 1/4 in unit on request before you order.
The M in the code sets a manual drain: someone opens it to release collected condensate, which suits attended cells; automatic or differential-pressure drains are available in the same size if you prefer unattended operation. The W in the code selects the 5 um fine element instead of the 40 um standard, for finer protection of downstream valves and actuators.
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.