The AirTAC GFR300C08C2 AirTAC Filter Regulator 1/4 in PT 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 GFR300C08C2 is a size 300 filter regulator that removes water and particulate from compressed air and sets downstream pressure in a single body. This configuration has a 1/4 in PT port, a 40 um standard filter element, a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element rises, and a standard regulator adjustable from 0.15 to 0.9 MPa (20-130 psi). A round external gauge on a psi scale is fitted so the set pressure can be read directly, and a mounting bracket is included for panel or wall fixing.
This is a genuine AirTAC part from the GFR range, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, optional 5 um (code W) elements, automatic or manual drains, square or round gauges on MPa, psi or bar scales, and G (BSPP) or NPT thread options to order. Rated flow for this size is published as a curve rather than a single figure, so ask us and we will confirm the datasheet numbers for your application before you order.
| Model | GFR300C08C2 AirTAC Filter Regulator 1/4 in PT |
|---|---|
| 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) |
Clean, regulated air to the press cylinders: the 40 um element keeps scale and pipe debris out of the valve stack, the regulator holds a steady set pressure for consistent forming, and the psi gauge lets the setter verify the setting at the machine.
Feeding diverter gates and stopper cylinders on a packaging conveyor, where the differential-pressure drain keeps condensate from travelling downstream during shift running and the bracket mounts the unit beside the manifold.
A bench-side air preparation point on a factory distribution drop: one body filters the shop air and sets a safe working pressure for air tools and small actuators, with the round psi gauge read at a glance by operators.
Start with the port step: this unit is the size 300 body on a 1/4 in PT thread, one step up from the 200 series, so choose it when your line runs more air than a 1/8 in or 1/4 in size 200 unit comfortably handles. The 40 um element suits general plant air; specify the 5 um W variant if downstream valves or cylinders need finer protection. Drain choice matters: the differential-pressure drain fitted here needs no daily attention, while automatic (code A) drains continuously and manual (code M) drains only when operated. Gauges can be the embedded square type or an external round gauge, on MPa, psi or bar scales - this unit carries a round psi gauge. PT is the standard thread; G (BSPP) and NPT are catalogue options to order, and a bracket is included.
Because AirTAC publishes flow for this series as curves and not as a single rated figure, we do not quote a flow number here. Send us your application details and we will confirm sizing against the datasheet curve before you order.
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 GFR series as performance curves rather than a single rated figure, so we do not state a l/min or SCFM number here. Tell us your application and we will confirm the datasheet curve and sizing for this 1/4 in size 300 unit on request before you order.
This configuration uses the default differential-pressure drain, which discharges collected condensate automatically when the pressure drop across the 40 um element rises - no daily manual draining. If your application prefers continuous bleeding or a operated drain, the same size 300 body is available with an automatic drain (code A) or a manual drain (code M); note the regulator setting range differs slightly by drain type, and we can confirm the variant you need.
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.