The AirTAC GFR30010LC2WGK AirTAC Filter Regulator G3/8 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 PT3/8" 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 GFR30010LC2WGK is a GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure at the set point in a single compact body. This 300-size unit is built with a G3/8 (BSPP) port, a 5 um filter element for finer filtration than the standard 40 um grade, and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough. It is the low-pressure (L) type, intended for circuits that run below the standard regulator range, and it carries a round external gauge scaled in psi plus a built-in reverse/check valve that holds the downstream setting if upstream pressure is lost.
This is a genuine AirTAC part from the GFR line, which spans sizes 200, 300, 400 and 600 with port options from 1/8 to 1 inch and PT, G or NPT threads. Flow figures for this series are published as curves rather than a single rating, so ask us to confirm sizing or any datasheet value against your application before ordering.
| Model | GFR30010LC2WGK AirTAC Filter Regulator G3/8 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (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 — 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. |
|---|---|
| 10 | Port size PT3/8". 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). |
| 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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeding clean, pressure-controlled air to a bank of directional control valves on an automated assembly line, with the 5 um element protecting spool clearances and the check valve holding the circuit setting during an upstream drop.
Regulating supply to cylinders that push, divert and stop product on a food-packaging conveyor, where the differential-pressure drain keeps condensate moving out without a daily manual blow-down stop.
Supplying low-pressure air to a laboratory test rig or pilot-scale process skid, where the low-pressure regulator type, psi-scaled gauge and fine 5 um filtration give operators a readable, repeatable setting.
Choose the GFR300 family when your line calls for combined filtration and regulation at a 3/8 port; step up or down a size (200/300/400/600) if your flow demand points to a different port. This code fixes several real choices for you: the 5 um (W) element suits air tools, instruments and valves that want finer air than the 40 um standard; the differential-pressure drain is the fit-and-forget option, while automatic (A) or manual (M) drains are orderable alternatives; the round gauge is scaled in psi, with MPa or bar scales and the embedded square gauge available as options. The G thread suits BSPP fittings, and the bracket is included for panel or wall mounting. Because flow for this series is published as curves and not as a single rated figure, 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 series as curves rather than a single rated figure, so we do not quote a rated flow number for this unit. Send us your application details and we will confirm the sizing from the datasheet on request before you order.
W sets the 5 um filter element instead of the 40 um standard grade, which is the right choice when downstream valves, cylinders or instruments need finer air. The drain on this unit is differential-pressure type: condensate is discharged automatically when the pressure differential across the element rises, so there is no manual drain routine; automatic (A) and manual (M) drain versions are available as order options.
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.