
The AirTAC AirTAC GFR300-10 Filter Regulator (GFR30010JC1K) is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/8" ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR300-10JC1K is a combined filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This 300-size unit has a PT3/8 port, the standard 40 um filter element, a differential-pressure drain, a round pressure gauge reading in MPa, and a built-in reverse (check) valve that holds downstream pressure if the upstream supply drops. Max inlet pressure is 1.0 MPa (145 psi) and the pressure setting range with differential drain is 0.15-0.9 MPa (20-130 psi).
This is a genuine AirTAC part from the G-series, which spans 200, 300, 400 and 600 sizes with a choice of ports, drain types, 40 um or 5 um elements, gauge styles and G or NPT thread options. Published flow data appears as curves rather than a single rating, so we confirm exact flow and datasheet figures on request before you order.
| Model | AirTAC GFR300-10 Filter Regulator (GFR30010JC1K) |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced 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 — round, 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). Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GFR300 | G-series filter regulator, 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR300 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Mounted ahead of a directional-valve manifold on an assembly-machine control panel, it cleans the plant air supply, holds a stable setting, and the check valve keeps the manifold pressurised during brief supply dips.
On a machining-centre clamping circuit, it filters incoming air and locks in the clamp pressure setting, so fixtures do not relax if the main line pressure sags mid-cycle.
Installed at the air inlet of a carton-sealing or wrapping machine, it strips water and pipe scale from the factory ring main and regulates the supply to the machine's cylinder circuit.
Choose the 300 size with PT3/8 when your line runs at 3/8 porting and sits mid-range in the G-series flow span; step up to 400 or down to 200 if your demand sits at the edges. The 40 um element suits general workshop air; pick the W suffix for 5 um where downstream equipment needs finer filtration. This code carries a differential-pressure drain, an external round MPa gauge, and a built-in check valve; order the JC1W variant instead if you need the 5 um grade. PT thread is standard here - G and NPT versions are separate catalogue codes. This J-suffix unit omits the mounting bracket; add one separately if panel fixing is needed. Flow is published as curves, not a single rated number, so ask us to confirm sizing against your application before ordering.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes G-series flow as performance curves rather than a single rated figure, so there is no one number we can honestly quote. Tell us your inlet pressure and required downstream flow and we will confirm sizing against the datasheet curves on request before you order.
The K suffix means a reverse (check) valve is fitted, so downstream pressure is held if the upstream supply fails. This configuration has a differential-pressure drain, which gives a 0.15-0.9 MPa (20-130 psi) setting range; a manual-drain variant widens that to 0.05-0.9 MPa.
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.