The AirTAC GFR30008MLJC2WGK AirTAC Filter Regulator G1/4 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 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 GFR30008MLJC2WGK is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is the low-pressure type (code L), intended for circuits that run below standard regulator settings - the exact regulation range for the low-pressure type is not published, so confirm it against your setpoint before ordering. It carries the 5 um filter element (the W grade, finer than the 40 um standard), a manual drain on the PC (polycarbonate) bowl, a round gauge reading in psi, and a reverse/check valve. The port is G1/4 (1/4 in BSPP); 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 made in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options for drain type, filter grade, gauge style and scale, thread (PT standard; G and NPT to order), bracket and reverse/check valve. Flow is published as curves rather than a single rated figure, so we confirm flow and other datasheet figures on request.
| Model | GFR30008MLJC2WGK AirTAC Filter Regulator G1/4 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (G (BSPP) 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, psi 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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. |
| G | G (BSPP) 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" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Filtered, regulated air for a bench pneumatic press on an assembly line: the 5 um element keeps water and fine particles out of the valve and cylinder, while the regulator holds a steady working pressure at the tool.
A low-pressure filter regulator suits spray guns and coating equipment, where the operator sets a gentle, stable pressure and the 5 um grade helps keep water and debris out of the finish.
Supplying filtered, regulated air to pick-and-place grippers and stopper cylinders on a packaging conveyor, with the built-in check valve helping hold downstream pressure during supply dips.
Size 300 with a G1/4 port sits in the middle of the GFR range (200/300/400/600); step up or down a size when the port or flow demand changes. Drain choices are differential-pressure (default), automatic (A) or manual (M) - this unit is manual, so the bowl must be drained on a schedule. Filter grade is 40 um standard or 5 um with the W code; this one carries the 5 um element for finer protection of downstream components. Gauges: an embedded square gauge is standard and an external round gauge is optional, with MPa, psi or bar scales - here a round psi gauge is fitted. Thread: PT is the standard, with G and NPT available as order options. Brackets are optional (this unit has none, code J). Flow is published as curves, not a single rating - ask us to confirm sizing against your application before ordering.
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 GFR series as curves, not as a single rated figure, so there is no one number we can quote. Tell us your working pressure and air demand and we will confirm the sizing from the datasheet before you order.
This unit uses the M-code manual drain: condensate collects in the PC bowl and is released by opening the drain by hand. Choose manual where the unit is easy to reach and drained as part of a routine; choose automatic or differential-pressure drain where the unit sits in a hard-to-reach spot.
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.