The AirTAC GFR30008MLC2WK AirTAC Filter Regulator PT1/4 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 GFR30008MLC2WK is an AirTAC GFR300 filter regulator: a 5 um filter element and a pressure regulator combined in one body, so compressed air is cleaned of water and particulate and then reduced to a stable working pressure in a single unit. This configuration is the 1/4 in (PT1/4) port with PT thread, a manual-drain polycarbonate bowl, the low-pressure regulator type, a round gauge reading in psi, a reverse (check) valve fitted, and a mounting bracket included.
This is a genuine AirTAC part. The GFR family is made in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and with a choice of drain type, filter grade, gauge scale and thread (PT standard; G and NPT to order). Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm sizing figures from the datasheet for your application.
| Model | GFR30008MLC2WK AirTAC Filter Regulator PT1/4 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (PT 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. |
| (blank) | Mounting bracket included. |
| (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. |
| (blank) | PT 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) |
Mounted at the drop of a packaging machine's air supply, this unit filters water and particulate out of the shop air and holds a reduced, stable pressure to the clamping cylinders, so grips close consistently cycle after cycle. The manual drain suits a machine that is attended each shift.
Spray work needs air that is both clean and held at a modest working pressure. The 5 um element catches fine particulate and water carryover before the gun, and the low-pressure regulator type with a psi gauge lets the operator set and read the reduced pressure directly at the booth.
Sorting gates and product stops run on small cylinders that are sensitive to pressure drift. A filter regulator at the line's take-off point keeps the supply clean and the working pressure steady, while the fitted check valve holds the downstream circuit if upstream supply is interrupted.
Within GFR300 the real choices are the port size (step up from 1/4 in if your line needs more flow), the drain (manual here; automatic and differential-pressure types are available), and the filter grade (this unit carries the finer 5 um W element instead of the 40 um standard). The gauge can be ordered in MPa, psi or bar scales, the thread as PT, G or NPT, and the bracket included or omitted. As this is the low-pressure (L) type, its regulation range differs from the standard unit and the exact figure is not published - confirm the set pressure you need with us before ordering. Flow is published as curves, not a single rated figure, so send your application details and we will confirm sizing from the datasheet.
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 series as curves, not as a single rated figure, so we do not quote a number here. Tell us your inlet pressure, the working pressure you need and the cylinders or tools you are feeding, and we will confirm the sizing from the datasheet on request before you order.
This configuration carries the M manual drain: the bowl is emptied by hand, which suits attended machines or points checked on a routine walk. If the unit will sit unattended, automatic and differential-pressure drain versions of the same GFR300 size are available. Note this unit also carries the finer 5 um element instead of the 40 um standard, and the low-pressure (L) regulator type.
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.