The AirTAC GFR300C10AF2WGK 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 GFR300C10AF2WGK is a 300-size filter regulator that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is threaded G3/8 (G/BSPP), filters to 5 um for finer protection than the standard 40 um element, drains condensate automatically via the auto drain, and carries an embedded square gauge scaled in psi. A reverse/check valve is fitted, and the unit handles a maximum inlet pressure of 1.0 MPa (145 psi) with an operating temperature range of -5 to 70 C (non-freezing). The bowl on this 300 size is PC (polycarbonate).
This is a genuine AirTAC part from the GFR filter-regulator family, which spans sizes 200, 300, 400 and 600 with port options from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, standard or low-pressure regulation, gauge scale options in MPa, psi or bar, and PT, G or NPT threads. Because flow is published as curves rather than a single rating, we confirm flow and other datasheet figures for your application on request.
| Model | GFR300C10AF2WGK 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) |
Feeding clean, regulated air to the cylinders and grippers on a carton-forming and sealing line, with the 5 um element protecting directional valves from particulate and the auto drain handling condensate through long shifts.
Regulating supply pressure to the stopper and pusher cylinders along a bottling conveyor, with the check valve holding the set circuit condition and the psi gauge giving operators a local reading at the machine.
Conditioning the compressed air feeding a laboratory sample-handling station, where the 5 um grade and stable regulated pressure suit sensitive pneumatic actuators and the automatic drain suits equipment left running unattended.
Size 300 with a G3/8 port sits in the middle of the GFR range; step up to 400/600 or down to 200 if your line's flow demand points elsewhere - ask us to check the published flow curves against your application before ordering. The automatic drain on this unit vents collected condensate without manual attention, which suits unattended or hard-to-reach installations; manual and differential-pressure drain versions are available if you prefer operator-controlled or air-saver draining. The 5 um element (code W) gives finer filtration than the 40 um standard - choose it where downstream valves and instruments need cleaner air. The fitted square gauge reads in psi; MPa or bar scales and an external round gauge are options. G (BSPP) thread is as coded here, with PT and NPT available to order, and a mounting bracket is included.
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 this family as curves rather than a single rated figure, so we do not quote a number here. Tell us your line conditions and required flow, and we will confirm the sizing from the datasheet curves for this 300-size, G3/8 unit before you order.
The A in the code specifies the automatic drain, which expels collected condensate on its own - useful where the unit is mounted in a cramped or infrequently visited spot. Differential-pressure (default) and manual drain versions of the same GFR300 filter regulator can be ordered instead 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.