The AirTAC GFR300C08JF2W 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 GFR300C08JF2W is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has PT1/4 (1/4 in) ports as the standard thread, a 5 um filter element (the W grade; 40 um is standard), a differential-pressure drain that clears the polycarbonate bowl as system pressure falls, an embedded square gauge scaled in psi, a standard regulator with a 0.15-0.9 MPa (20-130 psi) adjustment range, and no mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
It is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, G (BSPP) and NPT thread options, automatic, manual or differential-pressure drains, 40 um or 5 um filter elements, gauge and scale choices, and bracket or no-bracket mounting. Flow is published as curves rather than a single rating, so we confirm datasheet and flow figures for your application on request.
| Model | GFR300C08JF2W 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) |
Treat and regulate the air feeding clamps and vises on a machining centre, keeping moisture and fine particulate out of the clamping circuit while the operator holds a set pressure at the fixture.
Supply filtered, regulated air to sealers, labelers and pusher cylinders along a packaging conveyor, with the 5 um element protecting downstream directional valves from particulate carryover.
Give each assembly cell its own filter-regulator station off the main header, so the cell sets its own working pressure and the differential-pressure drain clears the bowl as line pressure falls at shutdown.
The GFR300 size sits between the GFR200 and GFR400, each step bringing a larger port and more flow capacity, so choose the size whose published flow curve covers your demand at working pressure rather than picking by port alone. This unit pairs the 5 um element (the W option; 40 um is standard) with a differential-pressure drain that bleeds the bowl as pressure drops, a square psi gauge, and no mounting bracket. Thread is PT as standard, with G (BSPP) and NPT available as order options, and gauge scales in MPa, psi or bar can be selected across the family. Flow is published as curves, not a single rating, so ask us to confirm 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, not a single rated figure, so we do not quote one number. Send us your inlet pressure, set pressure and expected air demand and we will confirm the flow from the datasheet before you order.
The W code selects the 5 um filter element; 40 um is the standard grade on the GFR300. Choose 5 um where downstream valves, cylinders or instruments need finer particulate removal. Both grades fit the same body, and the differential-pressure drain, square psi gauge and 0.15-0.9 MPa (20-130 psi) regulation range are unchanged.
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.