The AirTAC GFR300C08MLC2W AirTAC Filter Regulator PT1/4 5 um 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 GFR300C08MLC2W is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and controls downstream pressure. This configuration is sized for 1/4 inch PT ports, carries the finer 5 um filter element, a metal bowl with manual drain, and a round pressure gauge reading in psi. It is the low-pressure type, and a mounting bracket is included. Maximum working (inlet) pressure is 1.0 MPa (145 psi), with an operating temperature of -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 to 1 inch, and options for drain type, filter grade, gauge style and scale, and G or NPT thread in place of the PT standard. Flow for this family is published as curves rather than a single rated figure, so ask us to confirm sizing and any datasheet figure against your application before ordering.
| Model | GFR300C08MLC2W AirTAC Filter Regulator PT1/4 5 um |
|---|---|
| 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) |
Point-of-use conditioning on an assembly cell: the 5 um element strips water and fine particulate from the shop-air drop, and the regulator holds a controlled supply pressure to the clamps and cylinders on the fixture.
Finish lines need clean air at a steady, moderate setting: this low-pressure filter regulator conditions the feed to coating guns and air-assisted applicators at a spray booth, with the psi gauge giving the operator a direct reading.
On a carton-forming or case-packing conveyor, this unit filters and regulates the branch feeding the pneumatic cylinders and grippers, with the manual drain letting maintenance empty accumulated condensate at shift checks.
The real choices in this family are the size and port step (200/300/400/600, 1/8 to 1 inch) matched to the air your line needs; the drain type (differential-pressure as the catalogue default, automatic, or manual as fitted here); the filter grade (40 um standard, or the 5 um element fitted here); the gauge (an embedded square gauge is standard, while this unit carries the optional external round gauge with a psi scale; MPa and bar scales are also available); and the thread (PT standard, with G and NPT as order options). A mounting bracket is included on this configuration.
Because flow is published as curves and not as a single rated number, send us your application conditions and we will confirm sizing from the datasheet before you order. This unit is the low-pressure type; its exact adjustment range is not published in our sheet, and we will confirm it on request.
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 flow for this family as curves, not as a single rated number, so we do not quote a figure here. Tell us your inlet pressure and the flow your application needs, and we will confirm sizing from the datasheet on request.
This configuration has a metal bowl with a manual drain, so condensate is emptied by hand as part of routine checks. The same GFR300 size is also available with the differential-pressure drain (the catalogue default) or an automatic drain - ask us and we will identify the variant that matches your installation.
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.