The AirTAC GFR300C08JF2WTK AirTAC Filter Regulator 1/4 in NPT 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 GFR300C08JF2WTK is an AirTAC GFR300 filter regulator: water and particulate removal plus pressure regulation in a single body. This configuration is threaded 1/4 in NPT, uses the 5 um filter element instead of the 40 um standard, drains condensate by differential pressure, and shows the set pressure on the embedded square gauge scaled in psi. A reverse (check) valve is fitted, the regulator is the standard type with a 0.15-0.9 MPa (20-130 psi) adjustment range, and the unit is supplied without a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi); working temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family runs from size 200 to 600 with ports from 1/8 to 1 in, and can be ordered with PT or G threads, manual or automatic drains, the 40 um standard element, MPa/psi/bar gauge scales, and with or without a check valve or bracket; the 300-size bowl is polycarbonate (PC). Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C08JF2WTK AirTAC Filter Regulator 1/4 in NPT |
|---|---|
| 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) |
Feeds filtered, regulated air to the gripper and pusher cylinders on a bottling line; the 5 um element helps keep particulate out of downstream directional valves, and the square psi gauge gives operators a direct setpoint reading at the machine.
Regulates the supply to diverter and stopper cylinders along a packaging conveyor, with the fitted reverse (check) valve helping hold the downstream circuit if upstream supply dips during a compressor switchover.
Supplies steady, filtered air to the small pneumatic actuators on laboratory automation benches, where the compact 1/4 in NPT filter regulator mounts close to the point of use and the psi-scaled gauge simplifies routine setpoint checks.
Sizing starts with the port step: this unit is the 1/4 in NPT version of the GFR300 size, while larger sizes (400, 600) step up to 3/4 in and 1 in ports for higher air demand. Because flow is published as curves rather than one rated number, send us your flow and pressure conditions and we will confirm the correct size from the datasheet before you order. Regulation on this configuration covers 0.15-0.9 MPa (20-130 psi) with the differential-pressure drain, and the 5 um (W) element suits points where finer particulate control matters; the standard grade is 40 um. The gauge here is the embedded square type scaled in psi - MPa and bar scales and an external round gauge are the alternatives. Thread is NPT as ordered; PT is the AirTAC standard and G (BSPP) is also available. The K code adds a reverse (check) valve, and J means no mounting bracket is supplied.
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 series as curves, not as a single rated figure, so we do not quote a number on the page. Send us your flow and pressure conditions and we will confirm the sizing from the datasheet on request before you order.
K means a reverse (check) valve is fitted in this unit; without the K code the filter regulator is supplied without one. If your circuit must hold downstream pressure when the upstream supply drops, specify the K version - we can confirm the detail from the datasheet on request.
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.