The AirTAC GFR30008MLC1TK AirTAC Filter Regulator 1/4 in NPT 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 GFR30008MLC1TK is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the 300 size with a 1/4 in NPT port, a manual-drain bowl in polycarbonate, a 40 um filter element, and the low-pressure regulator type. It is rated for a maximum inlet pressure of 1.0 MPa (145 psi) and -5 to 70 C operation (non-freezing), and it comes with a round pressure gauge scaled in MPa, a reverse (check) valve fitted, and a mounting bracket included.
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, and options for thread (PT standard; G and NPT to order), drain type, 5 um filtration (code W), gauge style and scale, and reverse valve. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing for your application on request.
| Model | GFR30008MLC1TK AirTAC Filter Regulator 1/4 in NPT |
|---|---|
| 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 — round, MPa scale |
| Reflux valve | Fitted (reverse flow permitted) |
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). |
| C | Gauge shape: Round. 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. |
| K | Reverse-flow (reflux) valve fitted. |
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) |
Filtered, regulated air at a low set pressure holds workpieces in a clamping fixture. The manual-drain bowl is emptied during shift checks, and the fitted reverse valve supports the downstream circuit if supply pressure dips.
A packaging machine drop fed at reduced regulated pressure. The 40 um element strips water and pipe scale ahead of valves and cylinders, and the MPa round gauge gives operators a set point to verify at a glance.
A maintenance bench supplying spray guns and hand tools at reduced pressure. The included bracket mounts the unit at the regulator station, and the manual drain is bled at the end of each working session.
Size and port step up together: 200, 300, 400 and 600 cover ports from 1/8 in to 1 in, so choose the size whose flow curve covers your demand - ask us to check it against the datasheet before ordering. This unit is the low-pressure regulator type; its exact adjustment range is not published in the standard tables, so confirm it with us if your set pressure is critical. Drain here is manual (code M): you bleed the polycarbonate bowl by hand, which suits stations an operator already visits; automatic and differential-pressure drains are available in the family. Filtration is the standard 40 um element; specify code W for 5 um where finer particle capture matters. The round gauge is scaled in MPa (psi and bar scales are options), the thread is NPT (PT is the standard; G and NPT are order options), and the bracket is included.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR300 as curves, not as a single rated figure, so we do not quote a number here. Send us your operating pressure and air demand and we will confirm the sizing against the datasheet before you order.
The polycarbonate bowl collects water and the manual drain lets you bleed it off by hand, so this unit suits stations an operator already visits. If you prefer unattended draining, the GFR family also offers automatic and differential-pressure drain versions.
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.