The AirTAC GFR30010AJF2 AirTAC Filter Regulator PT3/8 Square Gauge psi 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 PT3/8" ports, a automatic 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 GFR30010AJF2 is a 300-size filter regulator that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is fitted with a PT3/8 port (PT thread as standard), an automatic drain that expels collected condensate without manual attention, a 40 um standard filter element, and an embedded square gauge reading in psi. The standard-type regulator adjusts outlet pressure across 0.15-0.9 MPa (20-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi) and an operating temperature range of -5 to 70 C (non-freezing). The polycarbonate bowl keeps the condensate level visible at a glance.
This is a genuine AirTAC part. The GFR300 series is one of four sizes (200, 300, 400, 600), with larger sizes carrying larger ports and higher flow capacity. Options across the series include a 5 um element (code W), manual or differential-pressure drain, alternative gauge scales (MPa/psi/bar), an external round gauge, a reverse/check valve, and G or NPT thread in place of PT. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application.
| Model | GFR30010AJF2 AirTAC Filter Regulator PT3/8 Square Gauge psi |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, psi 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. |
|---|---|
| 10 | Port size PT3/8". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 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 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeds filtered, regulated air to the clamping and tool-change circuits of a CNC machining centre, with the automatic drain keeping condensate out of the fixtures during unattended runs and the psi gauge giving operators a direct setpoint readout.
Supplies clean, pressure-regulated air to the cylinders and diverters on a carton packaging conveyor, where the automatic drain handles moisture carryover from long shifts and the 40 um element protects valve spools from particulate.
Serves as the point-of-use filter regulator on an assembly-line air drop, letting each station set its own outlet pressure within 0.15-0.9 MPa while the square psi gauge lets line staff verify the setting at a glance.
Size and port set the flow capacity: the 300 size with its PT3/8 port sits mid-range in the GFR family, one step above the 200 size and below the 400 and 600. Match the size step to the air demand of the circuit rather than to the pipe alone. Drain type is a real choice here: this unit carries an automatic drain (code A), which suits unattended or hard-to-reach installations; manual and differential-pressure drains are available on other variants if you prefer scheduled or demand-based draining. The 40 um element is the standard grade; specify the 5 um W variant where finer filtration is needed. The fitted square gauge reads psi; MPa and bar scales and an external round gauge are orderable alternatives. PT is the standard thread, with G (BSPP) and NPT available to order. Note that this J-coded variant ships without a mounting bracket. Flow is published as curves, not a single rating, so 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 flow for the GFR300 series as performance curves rather than a single rated figure, so there is no one number we can honestly quote. Send us your application details and we will confirm the relevant flow figures from the datasheet before you order.
The A in the model code specifies an automatic drain, which ejects collected condensate on its own - useful where the unit is mounted out of reach or runs unattended. Manual (code M) and differential-pressure (blank) drain variants exist in the same series if your maintenance routine prefers those.
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.