The AirTAC GFR30010MLF1WT AirTAC Filter Regulator NPT3/8 Low-Pressure 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 GFR30010MLF1WT is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration carries a 3/8 in NPT port, the finer 5 um filter element (code W, against the 40 um standard grade), a manual-drain polycarbonate bowl, and the low-pressure regulator type (L). The embedded square gauge reads in MPa, and the mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, drain choices of differential-pressure (default), automatic or manual, filter grades of 40 um standard or 5 um optional, and PT, G or NPT thread options. Flow is published as curves rather than a single rating, so ask us to confirm figures from the datasheet for your application.
| Model | GFR30010MLF1WT AirTAC Filter Regulator NPT3/8 Low-Pressure |
|---|---|
| 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, MPa 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 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) |
Filtered, regulated supply air to clamp cylinders on a CNC fixture line, where the 5 um element helps keep fine particulate out of clamp valves and the regulator holds the clamping pressure the fixture was set up with.
Conditioning the air feeding spray guns and air-assist lines in a paint booth, where fine filtration ahead of the gun and a stable, lower regulated pressure support consistent finish work.
Supplying the diverters, pushers and stop cylinders on a carton conveyor line, with the manual-drain bowl emptied during scheduled line checks to keep condensed water out of the actuators.
Size 300 with a 3/8 in NPT port sits mid-range in the GFR line; step down to 200 or up to 400/600 depending on the flow your circuit needs, and let us check the published flow curves against your application before you order. This unit is the low-pressure regulator type (L); its exact adjustment range is not published, so confirm the setpoint window with us if it matters to your circuit. The 5 um element (W) is the finer of the two available grades, suited where downstream devices are sensitive to fine particulate. Drain is manual, so plan a routine bowl-drain check; automatic and differential-pressure drains are available elsewhere in the family. The gauge is the embedded square type reading MPa, with an external round gauge in MPa, psi or bar scale available as an option. Bracket is included. PT is the standard thread; G and NPT are catalogue options to 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 GFR series as curves, not as a single rated figure, so we do not quote a number here. Send us your line pressure and required flow and we will confirm from the datasheet whether this size 300, 3/8 in unit fits your application before you order.
The M in the code means the bowl drains by hand: open the drain valve during routine checks to expel collected water. If you would rather not rely on operator rounds, the GFR family is also available with automatic (A) or differential-pressure (blank) drains - ask us for the equivalent code in your size and port.
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.