The AirTAC GFR300C08AJF2T AirTAC Filter Regulator NPT1/4 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 GFR300C08AJF2T is an AirTAC GFR300 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 NPT port, an automatic drain that ejects collected condensate without manual attention, a 40 um filter element, a standard regulator with a 0.15-0.9 MPa (20-130 psi) adjustment range, and an embedded square gauge scaled in psi. No mounting bracket is included and no reverse/check valve is fitted.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with a choice of PT, G or NPT thread, differential-pressure, automatic or manual drain, and a 40 um or 5 um (code W) filter grade. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR300C08AJF2T AirTAC Filter Regulator NPT1/4 |
|---|---|
| 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) |
Filtered, regulated air feeding a bench-mounted pneumatic press or clamping fixture, where the automatic drain keeps condensate out of the cylinder and the psi gauge lets operators verify set pressure at a glance.
Supplying clean, pressure-controlled air to a carton-sealing or wrapping machine, with the 40 um element protecting valves and the automatic drain suiting equipment that runs unattended between shifts.
Regulated air to conveyor-mounted diverters, gates and stop cylinders, where stable downstream pressure keeps actuation consistent along the line and the compact single-body unit fits the local drop.
Size 300 with a 1/4 in NPT port suits lines where air demand and piping fall in the mid-range; step up to size 400 or 600, or down to 200, if your flow curve or porting differs. The automatic drain on this unit suits unattended or hard-to-reach installations; a manual or differential-pressure drain is available if you prefer operator-controlled or demand-based draining. The 40 um element is the standard grade for general air prep; specify code W for 5 um where finer filtration is needed. The square gauge is scaled in psi here; MPa or bar scales and an external round gauge are options. PT is the standard thread, with G and NPT as order options, and a bracket can be added if this J-coded no-bracket version does not suit your mounting. 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 as a single rated figure, so we do not quote a number here. Ask us and we will confirm the datasheet flow curve against your application before you order.
The A in the code gives this filter regulator an automatic drain, which ejects collected condensate on its own - useful for unattended or hard-to-reach installations. Manual and differential-pressure drain versions are available if you prefer operator-controlled or demand-based draining.
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.