The AirTAC GFR300C08MLJC2GK AirTAC Filter Regulator G1/4 Metal Bowl 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 See datasheet 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 GFR300C08MLJC2GK is a GFR-series filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This 300-size unit is ported G1/4 (1/4 in) with G (BSPP) thread, carries the 40 um standard filter element, and has a metal bowl with manual drain. The regulator is the low-pressure type, a round pressure gauge scaled in psi is fitted, a reverse/check valve (code K) is built in, and the unit is supplied without 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 GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and is offered with a choice of drain (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um optional), gauge style and scale, thread (PT is the series standard; G and NPT are order options) and bracket. AirTAC publishes flow for this family as curves rather than a single rated figure, so ask us to confirm sizing and any datasheet figure - including the setting range of the low-pressure regulator - against your application before you order.
| Model | GFR300C08MLJC2GK AirTAC Filter Regulator G1/4 Metal Bowl |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (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 — factory standard, Factory standard 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. 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. |
|---|---|
| C0 | Port size See datasheet. 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) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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. |
| (blank) | No reverse-flow valve (the default). |
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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C0 (two-unit set) |
Filter and regulate air feeding low-pressure clamping, holding or indexing circuits on assembly fixtures, where the process pressure sits below the standard GFR setting range and the low-pressure regulator type is the right match.
Position at the air drop of a carton-forming or wrapping machine to deliver cleaned, pressure-controlled air to cylinders and blow-off jets; the manual drain suits a station that is checked each shift.
Feed filtered, regulated air to tool changers, clamps and purge points in a machining cell; the metal bowl suits installations that specify a metal bowl, and the reverse/check valve is already fitted.
Size selection is a port-and-flow decision: 200, 300, 400 and 600 step up from 1/8 in to 1 in and flow capacity rises with size, but because AirTAC publishes flow as curves rather than a single rating, send us your flow demand and we will confirm the right size from the datasheet. Drain is manual here; automatic and differential-pressure drains can be ordered where condensate cannot be drained by hand. The element is the 40 um standard grade, with 5 um (code W) available for finer filtration. The gauge on this model is the external round type scaled in psi; the embedded square gauge is standard and MPa or bar scales can be ordered. Thread is G (BSPP) - PT is the series standard and NPT is an order option - and the unit comes without bracket, with a bracket available as an option. The regulator is the low-pressure type and its exact setting range is not published, so confirm it against your circuit pressure with us.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes GFR300 flow as performance curves, not as a single rated figure, so we do not quote a number here. Tell us your flow demand and downstream equipment and we will confirm suitability - and the low-pressure regulator's setting range - from the datasheet on request.
This configuration specifies the metal bowl option (the standard 300-size bowl is polycarbonate; only size 600 uses aluminium alloy) with a manual drain, so condensate is drained by hand during routine checks. Automatic and differential-pressure drains can be ordered in the same family if you prefer hands-off draining.
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.