The AirTAC GFR30008LF2WGK AirTAC Filter Regulator G1/4 Low Pressure 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 differential-pressure 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 AirTAC GFR30008LF2WGK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure in one compact body. This G1/4 (BSPP) unit is the size-300 low-pressure type, fitted with a 5 um filter element, a differential-pressure drain on the polycarbonate bowl, an embedded square gauge scaled in psi, and a built-in reverse (check) valve; a mounting bracket is included.
It is a genuine AirTAC part from the GFR300 series, which spans sizes 200 to 600 with ports from 1/8 to 1 inch and PT, G or NPT thread options. This unit is rated for a maximum inlet pressure of 1.0 MPa (145 psi) and -5 to 70 C (non-freezing). Because flow is published as curves rather than a single rating, we confirm datasheet and sizing figures on request - just ask.
| Model | GFR30008LF2WGK AirTAC Filter Regulator G1/4 Low Pressure |
|---|---|
| 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, 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". |
| (blank) | Drain: Differential-pressure 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). |
| F | Gauge shape: Square. 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) |
Feeding spray guns on a paint or coating line: the 5 um element strips water and particles that would spoil the finish, the regulator holds a steady gun pressure, and the check valve keeps the setting from drifting back when the line idles.
Supplying the actuator cylinders on a carton-sealing or wrapping machine: filtered, regulated air at the machine drop, with the square psi gauge letting operators verify the set pressure at a glance during changeover.
Conditioning shop air for bench-top lab instruments and sample-handling rigs that run on low-pressure air: fine 5 um filtration protects sensitive components, and the reverse/check valve prevents backflow into the supply line.
Choose your size by the port and the flow your line needs: this size-300 unit carries a G1/4 port, and larger sizes in the series move more air. The 5 um element (code W) suits points of use that need finer filtration than the 40 um standard, and the differential-pressure drain bleeds the bowl automatically as air passes, with manual and automatic drain options available elsewhere in the range. The embedded square gauge here reads in psi (MPa and bar scales are alternatives), and the K code adds a reverse/check valve to hold the downstream setting. Flow is published as curves, not a single rating, so 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 GFR300 series as curves rather than a single rated figure, so we do not quote a number here. Tell us your working pressure and air demand and we will confirm the flow from the datasheet on request before you order.
The L code marks the low-pressure version of the GFR300 regulator section, intended for circuits that run below standard line pressures. The exact regulation range for this variant is not published in our sheet, so ask us to confirm it against your set pressure before ordering.
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.