
The AirTAC AirTAC GFC300-10 Combination Unit (GFC30010F1K) is a genuine G-series two-unit air-preparation set: a filter regulator that filters and regulates in one body, coupled to a lubricator. Two bodies do the work of three, with PT3/8" ports, a 40 µm element, a differential-pressure drain and regulation over 0.15 - 0.9 MPa (20 - 130 psi).
The AirTAC GFC series is a two-unit set: a filter-regulator that removes water and particulate from compressed air and holds downstream pressure, plus a lubricator that meters oil mist to downstream tools and cylinders. This GFC30010F1K is the size 300 frame with PT 3/8 in ports, a standard 40 um element, and a polycarbonate bowl with differential-pressure drain on the filter-regulator section. The embedded square gauge is scaled in MPa, and the K suffix adds a reverse (check) valve in the regulator section so downstream pressure is held if the upstream supply dips. Maximum inlet pressure is 1.0 MPa (145 psi), the regulator adjusts 0.15-0.9 MPa (20-130 psi) with this drain type, and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The G-series covers sizes 200, 300, 400 and 600, with options including a 5 um element, automatic or manual drains, NPT or G (BSPP) threads, other gauge scales, and versions without the check valve or gauge. AirTAC publishes flow as curves rather than a single rated figure, so we will confirm the datasheet figures for your duty on request.
| Model | AirTAC GFC300-10 Combination Unit (GFC30010F1K) |
|---|---|
| Series | GFC300 two-unit set |
| Composition | Filter regulator + lubricator (2 units) |
| Port size | PT3/8" (PT thread) |
| Filtering grade | 40 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, MPa 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 0.15 - 0.9 MPa (20 - 130 psi). The set has no separate bracket code — the two 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.
| GFC300 | G-series two-unit set, 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)). |
| (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. |
| 1 | Gauge scale: MPa. 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 set. Constituent units, orderable separately as spares: GFR300-10 filter regulator and GL300-10 lubricator.
A GFC is two units because filtering and regulating share one body. A GC is three separate units — filter, regulator and lubricator. Both filter, regulate and lubricate; the GFC is the shorter assembly, the GC keeps the filter and regulator serviceable as separate bodies.
| This model | GFC300 · PT3/8" · 40 µm |
|---|---|
| One size down | GFC200 |
| One size up | GFC400 |
| Three-unit equivalent | GC300-10 |
| Build order | Filter regulator first, lubricator last |
On weld-cell clamp fixtures, the K check valve holds the regulated downstream pressure if the main header sags, so clamp cylinders keep the part located while the filter-regulator and lubricator condition the supply.
Feeding hose-reel outlets in a maintenance shop, the set delivers clean, regulated, oil-misted air to impact wrenches and ratchets, and the check valve keeps the reel circuit charged during upstream switching.
On a sorting line's rapid-cycling gate cylinders, the filter-regulator holds consistent set pressure for repeatable gate timing while the check valve protects the circuit from upstream pressure dips, and the lubricator conditions the air.
Pick this F1K version when a supply dip must not bleed your downstream circuit: the K-fitted check valve holds the regulated side while you fix the upstream side, which matters on clamping and holding duties. Size 300 with 3/8 in PT ports is the mid step (200/300/400/600); we can check the published flow curves against your demand before you order. Drain is differential-pressure as standard here, with automatic and manual variants available; the 40 um element is standard and the W option gives 5 um. The embedded square gauge reads MPa; round psi and bar gauges and a no-gauge variant exist. PT thread is standard, with G (BSPP) and NPT as catalogue options, and a bracket is available.
Quick checklist
The PC bowls must not be cleaned with solvents — wipe them with a dry cloth. The lubricator adds an oil mist downstream, so if any branch must stay oil-free, take that branch off before the lubricator or use a GFR300-10 filter regulator on its own.
AirTAC publishes G-series flow as performance curves, not as a single rated figure, so we do not quote one number here. Give us your line pressure and the demand of the actuators or tools downstream, and we will confirm the sizing from the datasheet on request before you order.
K means a reverse (check) valve is fitted in the regulator section: if upstream pressure falls away, the valve holds the pressure already set downstream. Otherwise the unit is the standard GFC300 two-unit set - 3/8 in PT ports, 40 um element, differential-pressure drain, square MPa gauge - and the same family is offered without the check valve.
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.