The AirTAC GFR300C08JF2WG AirTAC Filter Regulator G1/4, 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 AirTAC GFR300C08JF2WG is a GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This configuration is sized GFR300 with a G1/4 (BSPP) port, a 5 um filter element (the finer of the two catalogue grades), a differential-pressure drain, and a built-in square gauge scaled in psi. The regulator is the standard type with a 0.15-0.9 MPa (20-130 psi) adjustment range, maximum inlet pressure is 1.0 MPa (145 psi), operating temperature is -5 to 70 C (non-freezing), the 300-size bowl is polycarbonate (PC), and no mounting bracket is fitted.
This is a genuine AirTAC part. The GFR line spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and is offered with manual or automatic drains, 40 um or 5 um elements, an optional reverse/check valve, embedded square or external round gauges in MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing figures for your application before ordering.
| Model | GFR300C08JF2WG AirTAC Filter Regulator G1/4, 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 for gripper and handling valves on an assembly-line robot, where the 5 um element helps keep moisture and fine particulate out of the control circuit while the regulator holds the set pressure the cylinders were set up with.
A local filter-regulator ahead of carton sealers and wrapping machines, giving operators a psi reading on the built-in square gauge and a stable supply pressure to the machine's cylinders and clamp actuators.
A regulated drop point for air tools and test rigs in a plant maintenance shop, with the differential-pressure drain handling collected condensate during normal operation and the 5 um grade suiting sensitive inline components.
Choose the size by the flow your line needs: 200, 300, 400 and 600 step up in port and capacity, and this unit sits at 300 with a G1/4 port. Drain comes as differential-pressure (standard), automatic (A) or manual (M); the filter element is 40 um as standard or 5 um with the W code, as fitted here. Gauges are embedded square as standard with an external round gauge optional, in MPa, psi or bar scales; the thread is PT as the catalogue standard with G and NPT as order options, and a bracket is included unless the J (no bracket) code is ordered.
Because flow is published as curves rather than one rated figure, send us your application details and we will confirm sizing against the datasheet 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 G-series flow as curves rather than a single rated figure, so we do not quote a number here. Tell us your working pressure and air demand and we will confirm the flow curve and sizing from the datasheet on request.
The W in the code GFR300C08JF2WG selects the 5 um element in place of the 40 um standard. Choose 5 um where downstream valves, cylinders or instruments are sensitive to fine particulate; 40 um suits general plant air. Both grades are available across the GFR range.
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.