The AirTAC GFR30010MLJF2WT AirTAC Filter Regulator 3/8 in NPT, 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/8" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR30010MLJF2WT is an AirTAC GFR300 filter regulator: filtration and pressure regulation combined in a single body. It removes water and particulate from compressed air through a 5 um element (finer than the 40 um standard) and regulates downstream pressure with its low-pressure type regulator. This configuration has a 3/8 in NPT port, a manual drain bowl in polycarbonate, an embedded square gauge scaled in psi, 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.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with a choice of ports, threads (PT standard; G and NPT as order options), drain types (differential-pressure, automatic or manual), filter grades (40 um standard, 5 um optional), gauge styles and scales, and bracket options. Flow is published as curves rather than a single rating, so we confirm flow and datasheet figures on request.
| Model | GFR30010MLJF2WT AirTAC Filter Regulator 3/8 in NPT, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Low-pressure 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 | Manual 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure 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. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
On a welding or machining fixture that clamps with air cylinders at reduced pressure, this filter regulator cleans the supply to 5 um and holds the low set pressure the clamps need, with the psi gauge giving the operator a direct reading.
A cartoning or wrapping machine with sensitive pilot valves benefits from water and fine particulate removal upstream; the single-body filter regulator saves panel space, and the manual drain suits a machine serviced each shift.
A test bench or lab rig running instruments at modest pressures uses the low-pressure type regulator to trim supply gently, while the 5 um element protects delicate reference instruments from moisture and debris in shop air.
Size 300 with a 3/8 in port sits in the middle of the GFR range; step up to 400 or 600, or down to 200, as your line's flow demand dictates - ask us to confirm sizing against the published curves before ordering. The 5 um element (code W) suits applications needing finer particulate capture than the 40 um standard. Manual drain means an operator opens the bowl drain periodically; choose automatic or differential-pressure drain if the unit is hard to reach. The square gauge here is scaled in psi; MPa and bar scales are also available. This is the low-pressure type, so confirm its adjustment range against your set pressure before ordering. NPT thread is an order option alongside the PT standard and G (BSPP). No bracket is fitted with this code; brackets are optional.
Flow for this family is published as curves, not a single rated figure, so we cannot quote a number here - send us your application details and we will confirm sizing from the datasheet on request.
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 GFR series as curves, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow and datasheet figures for this exact model on request.
Manual drain means an operator opens the bowl drain by hand at service intervals; automatic and differential-pressure drain options exist if the unit is mounted where regular access is impractical. The 5 um element (code W) is finer than the 40 um standard, capturing smaller particulate before the air reaches your regulator outlet.
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.