The AirTAC AirTAC GFR30010LNWT 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 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 AirTAC GFR30010LNWT is a GFR-series filter regulator: it removes water and particulate from compressed air and reduces pressure to the level your circuit needs, in a single body. This 300-size unit is built with 3/8 in NPT ports, a 5 um filter element (the finer of the two catalogue grades), a differential-pressure drain (the standard catalogue option), and the low-pressure regulator type. The bowl is polycarbonate (PC); only size 600 carries an aluminium alloy bowl. Max working (inlet) pressure is 1.0 MPa (145 psi), operating temperature is -5 to 70 C (non-freezing), no gauge is fitted, no reverse/check valve is fitted, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and can be ordered with a 40 um or 5 um element, differential-pressure, automatic or manual drain, a gauge (embedded square or external round, in MPa, psi or bar scale), PT, G or NPT thread, and with or without a bracket. AirTAC publishes flow as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | AirTAC GFR30010LNWT Filter Regulator 3/8 in NPT 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Not fitted |
| 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". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| N | No pressure gauge (N). |
| (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. |
| 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) |
Feeds a fixture-clamping circuit on a CNC cell: the regulator drops shop-air supply to the reduced pressure the clamps need, while the 5 um element keeps scale and pipe rust out of the clamping valves.
Sits ahead of low-pressure spray guns or atomizing nozzles in a paint or coating booth, filtering water and particles from the atomizing air and holding a stable reduced supply pressure in one body.
Prepares air for low-pressure actuators on a packaging or sorting conveyor - diverters, pushers and stop gates - combining clean, moisture-reduced air with a settable supply pressure in a single unit.
Choose the size by the port and flow step: sizes 200, 300, 400 and 600 move up through port sizes from 1/8 in to 1 in, so match the 3/8 in NPT connection on this unit to your line and expected demand. This model carries the 5 um element (code W) instead of the 40 um standard - pick 5 um where downstream valves, cylinders or instruments need finer protection. The drain is differential-pressure; automatic (A) and manual (M) versions exist if your duty suits them better. As an L-code unit it is the low-pressure regulator type. Thread is NPT on this model; PT is the standard catalogue thread and G (BSPP) is also available to order. A gauge is not fitted (code N), though gauge options exist across the family, and a bracket is included.
Because AirTAC publishes flow as curves rather than a single rated figure, we do not quote a flow number - 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 GFR300 flow as performance curves rather than a single rated figure, so we do not quote a flow number. Tell us your line pressure, port size and downstream demand and we will confirm sizing against the datasheet on request.
Code N means no gauge is fitted. Within the GFR family you can order a unit with an embedded square gauge or an external round gauge, in MPa, psi or bar scale. This unit also decodes as the low-pressure type (L), 5 um element (W), differential-pressure drain, NPT thread, with bracket included.
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.