The AirTAC GFR30010MLF2WT AirTAC Filter Regulator NPT3/8 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 AirTAC GFR30010MLF2WT is a GFR300-series filter regulator: water and particulate filtration plus pressure regulation combined in a single body, sized for a 3/8 in NPT port. This configuration carries the W-grade 5 um filter element for finer air cleaning than the standard 40 um element, a manual drain on the polycarbonate bowl, and the low-pressure regulator type with an embedded square gauge reading in psi. A 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 is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of manual, automatic or differential-pressure drains, 40 um or 5 um filtration, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR30010MLF2WT AirTAC Filter Regulator NPT3/8 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. |
| (blank) | Mounting bracket included. |
| (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 bench or C-frame press running air cylinders at a reduced set pressure, this unit filters the shop air to 5 um and holds the regulator set point, with the psi square gauge giving the operator a direct readout at the machine.
Feeding the solenoid valve island on a cartoning or case-packing line, the 5 um element keeps fine particulate out of the valve spools while the regulator drops plant supply pressure to the level the island was specified for.
On a lab bench rig or pilot test skid where instruments and pneumatic actuators sit downstream, the combination of 5 um filtration, low-pressure regulation and a manual-drain bowl gives clean, adjustable air with a simple daily drain routine.
Step through the decodable choices in order. First, size and port: this unit is size 300 with a 3/8 in NPT port; step up to size 400 or 600 if your line needs more capacity, or down to 200 for compact circuits. Second, filtration: the standard element is 40 um; this unit carries the optional W-grade 5 um element, the right choice when downstream valves and cylinders need finer protection. Third, drain: this configuration uses a manual drain, which suits installations where an operator can bleed the bowl on a routine; choose automatic or differential-pressure drain codes where the unit is mounted in a hard-to-reach position. Fourth, gauge and scale: the embedded square gauge is standard and this code specifies the psi scale; MPa and bar scales and an external round gauge are order options. Thread is NPT here; PT is the catalogue standard and G (BSPP) is also available to order. A mounting bracket is included.
One honest note before you order: AirTAC publishes flow for this family as curves, not as a single rated number, and the set-point range of the low-pressure regulator type is not stated as a single figure either. Send us your line pressure, required set pressure and estimated air demand, and we will confirm the sizing against the datasheet before you commit.
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 family as performance curves, not as a single rated figure, so we do not quote a number here. Tell us your inlet pressure, set pressure and estimated air consumption, and we will confirm the sizing from the datasheet on request before you order.
The W in the code GFR30010MLF2WT selects the optional 5 um element instead of the standard 40 um element, for finer protection of downstream components. The M selects a manual drain, so condensate is bled from the polycarbonate bowl by hand on a routine; if the unit will be mounted where it cannot be reached easily, ask us about the automatic or differential-pressure drain codes instead.
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.