The AirTAC GFR300C08C2W AirTAC Filter Regulator 1/4 in PT, 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 GFR300C08C2W is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is threaded PT1/4 (1/4 in, PT thread; G and NPT are order options), carries a 5 um filter element (code W, against the 40 um standard), drains by differential pressure, and is fitted with an external round gauge scaled in psi. The standard regulator adjusts from 0.15 to 0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the unit operates from -5 to 70 C (non-freezing). The size 300 bowl is polycarbonate, a mounting bracket is included, and no reverse/check valve is fitted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and offers drain choices (differential-pressure, automatic or manual), 40 um or 5 um elements, and gauge and thread options. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR300C08C2W AirTAC Filter Regulator 1/4 in PT, 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) |
Feeding clean, regulated air to the pneumatic valves and tool-clamp circuit of a machining centre: the 5 um element handles water and particulate upstream of sensitive components while the regulator holds the working pressure the cell was set up for.
Supplying cylinders and grippers on a carton-forming and sealing line: the regulator keeps actuator pressure stable as stations cycle, and the differential-pressure drain clears collected condensate without a manual drain round on every shift.
Providing filtered, regulated air to pneumatic positioners and control valves on a process skid: the round psi gauge gives operators a familiar local reading, and the 5 um grade suits instrument-grade take-offs downstream of the plant ring main.
Step through the decodable choices: size (200/300/400/600) sets the port and the flow capacity band, so match the size to your distribution piping - this unit is size 300 with a 1/4 in PT port. Drain type: differential-pressure (the default, as fitted here) clears condensate with flow conditions, automatic drains continuously, and manual requires periodic draining - choose based on access and how often the line runs. Filter grade: 40 um is standard and 5 um (code W) is the finer option - this unit carries 5 um. Gauge: an embedded square gauge is standard and an external round gauge is optional, with MPa, psi or bar scales - this unit has a round psi gauge. Thread: PT is the standard; order G (BSPP) or NPT where your plant standard differs. A mounting bracket is included.
Flow for the GFR300 is published as curves, not a single rating, so ask us to confirm the datasheet figures and check the sizing against your application before ordering.
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 the GFR300 as curves rather than a single rated figure, so we do not quote a number on the page. Tell us your application and we will confirm the datasheet flow figures and check the sizing with you before you order.
The 40 um element is the standard grade for the GFR family; the W code specifies the optional 5 um element, used where downstream valves, cylinders or instruments are fed from a finer take-off. This unit is built with the 5 um element, and 40 um versions of the same size are available.
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.