The AirTAC GFR30010MLC3WT AirTAC Filter Regulator NPT 3/8 in, 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 GFR30010MLC3WT is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This configuration is the 300 size with a 3/8 in NPT port, the finer 5 um filter element (code W), a manual-drain bowl in polycarbonate, the low-pressure regulator type, and a fitted round pressure gauge reading in bar. A mounting bracket is included.
This is a genuine AirTAC part. The G-series filter regulators are offered in 200/300/400/600 sizes with ports from 1/8 in to 1 in, a choice of drain (differential-pressure, automatic or manual), 40 um standard or 5 um fine filtration, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm sizing figures from the datasheet for your application.
| Model | GFR30010MLC3WT AirTAC Filter Regulator NPT 3/8 in, 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 — round, bar 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 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) |
Clean, regulated air feeding the directional valves and cylinders on a carton-forming or wrapping line, with the 5 um element protecting spool clearances and the bar gauge giving operators a visible setpoint.
A paint or coating spray station where the finer 5 um grade helps keep water and particulate out of the finish, and the low-pressure regulator type suits circuits that run below the standard adjustment span.
A bench or machine-mounted press, clamp or gripper circuit where the 3/8 in port serves the actuator supply and the manual drain is emptied as part of the scheduled maintenance walk-round.
Size the unit by the port and flow step: 300 sits in the middle of the 200/300/400/600 range, and this one carries a 3/8 in NPT thread (PT is the standard thread; G and NPT are order options). The 5 um element (code W) is the finer of the two published grades - choose it when the downstream equipment needs cleaner air than the 40 um standard gives. Manual drain means the bowl is emptied by hand during routine checks instead of relying on an automatic or differential-pressure drain. The low-pressure regulator type is for circuits that run below the standard adjustment span; the exact range is not published, so confirm it with us before ordering. The fitted round gauge reads in bar.
Flow is published as curves, not a single rated figure, so send us your flow requirement 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 this series as curves rather than a single rated figure, so no one number is quoted here. Tell us your line pressure and required flow and we will confirm the sizing against the datasheet before you order.
M is the manual drain (instead of the differential-pressure default or the automatic option), W is the finer 5 um filter element over the 40 um standard, and C3 is the fitted round pressure gauge with a bar scale. The L marks the low-pressure regulator type; its exact adjustment range is not published, so ask us to confirm it for your circuit.
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.