The AirTAC GFR300C08JF3WT AirTAC Filter Regulator, NPT 1/4 in, 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 GFR300C08JF3WT is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This configuration is threaded 1/4 in NPT, carries the 5 um filter element (code W) for finer filtration than the 40 um standard, drains condensate by differential pressure with no drain fitting to touch, and includes the embedded square gauge scaled in bar. The regulator is the standard type with a 0.15-0.9 MPa (20-130 psi) setting range, the bowl is metal, and no mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, plus choices of drain type, filter grade, gauge scale and PT/G/NPT thread, so a matching unit can be specified for almost any line. Flow is published as curves rather than a single rating; ask us and we will confirm the datasheet figures for your application.
| Model | GFR300C08JF3WT AirTAC Filter Regulator, NPT 1/4 in, 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 ahead of a machine tool's valves and actuators: the 5 um element catches fine particulate while the regulator holds a steady setting for clamps, tool changers and coolant mist circuits.
Conditioning the branch feeding carton-forming and case-sealing cylinders on a packaging conveyor line, where the differential-pressure drain clears condensate without stopping the line for manual draining.
Clean, regulated air for lab automation frames, pneumatic pipetting stations and small test rigs, where the 5 um grade and a bar-scaled square gauge suit instrument-style setups.
Choose the size by port and flow: this unit is size 300 with a 1/4 in NPT port; step up to 400 or 600 for larger ports and more flow. Drain options are differential-pressure (fitted here), automatic (A) or manual (M); filter grade is 5 um here versus the 40 um standard. The embedded square gauge in bar is fitted, with MPa or psi scales and an external round gauge available as alternatives. Thread is NPT here, with PT as the standard option and G (BSPP) also orderable; a bracket can be added since this J-coded unit comes without one. Because flow is published as curves rather than one rated figure, 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 a number here. Send us your line pressure, downstream demand and acceptable pressure drop, and we will confirm the flow figures from the datasheet before you order.
The W in the code selects the 5 um element for finer particulate removal than the 40 um standard. It suits lines feeding sensitive valves, cylinders or instruments. If your application only needs bulk water and coarse particle removal, the 40 um standard grade is the alternative choice.
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.