The AirTAC GFR30008ALC2WGK 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 automatic drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR30008ALC2WGK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in one body. This configuration carries a G1/4 (1/4 in) port with G thread, a 5 um filter element (code W), an automatic drain, a low-pressure type regulator, a round gauge reading in psi, a reverse (check) valve and a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The 300-size bowl is polycarbonate (PC); only the 600 size uses aluminium alloy.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, PT as the standard thread and G or NPT as order options, plus a choice of drain types, 40 um standard or 5 um elements, gauge styles and scales, and standard or low-pressure regulation. Flow for this family is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR30008ALC2WGK AirTAC Filter Regulator G1/4 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (G (BSPP) thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Automatic 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". |
| A | Drain: Automatic drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 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. |
| 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) |
Feeds low-pressure regulated air to spray guns and atomising stations in a paint or coating booth, with the 5 um element keeping water and particulate out of the finish and the automatic drain handling condensate without daily attention.
Sits ahead of the low-pressure cylinders and actuated grippers on a case-sealing or cartoning machine, holding a set supply pressure for consistent box clamping while the automatic drain clears moisture from the drop leg.
Regulates supply to a low-pressure workholding clamp circuit, with the fitted check valve in the line and the round psi gauge letting an operator verify the set pressure at the fixture.
The real choices on this family: step the size up or down (200/300/400/600) to match the port and flow your line needs; pick the drain - differential-pressure (the default), automatic as fitted here, or manual; choose the 40 um standard element or the 5 um W grade fitted on this unit; select the gauge (embedded square is standard, external round is optional) and its scale in MPa, psi or bar; and specify the thread - PT is the family standard, with G and NPT available to order. Brackets are optional across the family and included on this unit. Flow is published as curves, not a single rating, so send us your application details and we will confirm sizing from the datasheet before you order.
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 family as curves rather than a single rated number, so we do not quote a l/min, m3/h or SCFM figure. Tell us your application and required flow and we will confirm the correct size from the datasheet on request.
It marks the low-pressure type regulator. The exact adjustment range for this variant is not published in our sheet, so we confirm it on request rather than quoting the standard-type range. The rest of the code decodes as: A = automatic drain, C2 = round gauge with psi scale, W = 5 um filter element, G = G thread, K = reverse (check) valve fitted.
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.