The AirTAC GFR300C10ALC2WGK AirTAC Filter Regulator G3/8, 5 um is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet 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 GFR300C10ALC2WGK is a size-300 filter regulator: water and particulate removal plus downstream pressure regulation in a single body. This configuration carries a G3/8 (BSPP) port, a fine 5 um filter element (code W), an automatic drain that bleeds collected condensate without manual attention, and the low-pressure regulator type for circuits that run below standard regulating ranges. It is fitted with an external round gauge scaled in psi, a reverse/check valve to hold downstream pressure, and a mounting bracket. The polycarbonate bowl suits this size class.
This is a genuine AirTAC part from the GFR range, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch. Options across the series include manual, automatic or differential-pressure drains, 40 um or 5 um elements, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm sizing figures from the datasheet for your application.
| Model | GFR300C10ALC2WGK AirTAC Filter Regulator G3/8, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard 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 — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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. |
|---|---|
| C1 | Port size See datasheet. 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C1 (two-unit set) |
Conditioning and regulating supply air to a welding or assembly robot's gripper and clamp circuits, where the 5 um element protects fine control valves and the check valve holds position on a dropped supply.
Feeding clean, regulated air to carton-forming and sealing machinery, with the automatic drain handling condensate on a line that runs unattended through shifts.
Regulating air to pop-up diverters and gate cylinders on a distribution conveyor, where the low-pressure type suits circuits set well below standard line pressure and the psi gauge gives operators a familiar readout.
Choose the size and port step against the air demand of the circuit: this unit is size 300 with a 3/8 inch port; larger sizes carry larger ports and more flow. Because flow is published as curves and not a single rated figure, ask us to confirm sizing against your application before ordering. On this code the fine 5 um element (W) is already selected instead of the standard 40 um, the automatic drain is selected over manual or differential-pressure types, and the round gauge is scaled in psi (square embedded gauges and MPa/bar scales are the alternatives). The G thread is specified here; PT is the standard thread and G or NPT are order options. A bracket is included, and the K code adds a reverse/check valve.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back 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 no one-number rating exists to quote. Tell us your application and we will confirm the relevant flow figures from the datasheet on request before you order.
The A in the code selects the automatic drain, which discharges collected condensate by itself instead of waiting for a manual bleed or relying on a differential-pressure event. Manual and differential-pressure drains are available as alternative codes on the same size if your maintenance routine prefers them.
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.