The AirTAC GFR30008MLF1T AirTAC Filter Regulator NPT1/4 Low-Pressure is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/4" 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 GFR30008MLF1T is an AirTAC GFR300 filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate from compressed air with the standard 40 um element, then regulates downstream pressure. This configuration has 1/4 in NPT ports, a manual drain bowl in polycarbonate, the low-pressure regulator type, an embedded square gauge scaled in MPa, and a mounting bracket included. The manual drain means an operator opens the drain at the bottom of the bowl to expel collected condensate, which suits installations visited as part of a routine check rather than unattended automatic draining.
This is a genuine AirTAC part from the GFR300 size class within the G series, which spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in and PT, G or NPT threads. Drain type, filter grade (40 um standard, 5 um with code W), gauge style and scale, and low-pressure or standard regulator type can all be selected across the range. Flow is published as curves rather than a single rating, so we confirm the datasheet figures for your application on request.
| Model | GFR30008MLF1T AirTAC Filter Regulator NPT1/4 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (NPT thread) |
| Filtering grade | 40 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. |
|---|---|
| 08 | Port size PT1/4". 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. |
| (blank) | Filtering grade 40 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 · PT1/4" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Feeding filtered, low-pressure regulated air to spray guns in a paint booth, where the 40 um element keeps moisture and debris out of the finish and the manual drain is emptied during end-of-shift checks.
Conditioning the air supply to low-pressure actuation circuits on packaging and labelling machines, with the MPa square gauge giving operators a direct reading at the setpoint.
Supplying clean, regulated air to low-pressure actuators on dampers, gates and diverters in plant utilities, where the included bracket allows panel or frame mounting next to the take-off point.
Size and port step up with required flow: this unit is size 300 with 1/4 in NPT ports, so step to 400 or 600 if your line draws more air, or down to 200 for compact circuits. Drain type is a real choice: manual (this unit) needs periodic operator draining, automatic drains unattended, and the differential-pressure default drains on a pressure drop. Filter grade is 40 um standard or 5 um (code W) for finer protection. Gauge is the embedded square type in MPa here, with psi or bar scales and an external round gauge available. Thread is NPT on this model; PT (standard) and G are order options. A mounting bracket is included.
Because AirTAC publishes flow as curves and not a single rated figure, and because this is the low-pressure regulator type whose exact regulation range is not published on the sheet, ask us to confirm sizing and the regulation range against your application before ordering.
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 GFR300 as performance curves rather than a single rated number, so we do not quote a rated flow, Cv or SCFM figure. Tell us your application and we will confirm the flow figures from the datasheet on request before you order.
The M in the code GFR30008MLF1T specifies a manual drain: condensate collected in the polycarbonate bowl is released by opening the drain by hand as part of routine checks. If the installation runs unattended, order the same GFR300 size with an automatic drain (code A) or the differential-pressure drain default 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.