The AirTAC GFR300C10AJC2WG 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 GFR300C10AJC2WG is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This configuration is built on the GFR300 size with G3/8 (BSPP) ports, a 5 um filter element (the W code, against the 40 um standard), an automatic drain that discharges collected condensate from the polycarbonate bowl, a round gauge reading in psi, the standard (not low-pressure) regulator, and no mounting bracket or check valve. Maximum inlet pressure is 1.0 MPa (145 psi), the regulating range with the automatic drain is 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and is offered with manual, automatic or differential-pressure drains, 40 um or 5 um filtration, an embedded square gauge or an optional external round gauge in MPa, psi or bar scales, G, NPT or PT threads, and optional brackets. Flow is published as curves rather than a single rating, so ask us to confirm sizing and any datasheet figure for your application before ordering.
| Model | GFR300C10AJC2WG 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) |
Clean, regulated air to the clamps and swing cylinders on a machining or assembly fixture, where the 5 um element protects directional valves and the psi gauge lets setters verify clamp pressure at the station.
Supplying the pick-and-place cylinders and product diverters on a packaging or bottling conveyor, with the automatic drain keeping condensate out of the valves on lines that run across shifts.
Point-of-use air preparation for paint spray guns and air tools at a finishing booth, where the 5 um element and a steady regulated pressure are what the gun supply line calls for.
Choose the size by the flow your line needs: the 300 size with G3/8 ports sits in the middle of the 200/300/400/600 range, and each step up raises both port and flow capacity - we can check the flow curve against your demand before you order. Decide the drain (this unit is automatic; manual and differential-pressure versions exist in the family), the filter grade (5 um here for cleaner air; 40 um is the standard element), the gauge and its scale (this unit carries a round psi gauge; the embedded square gauge in MPa, psi or bar scales is the alternative), the thread (G here; PT is the standard offering and NPT is also an order option), and whether you need a bracket (this unit is supplied without one - the J code).
Because AirTAC publishes flow as curves and not a single rated figure, send us your application details and we will confirm sizing against the datasheet before you order.
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 G-series flow as curves rather than a single rated figure, so we do not quote a number here. Tell us your application and the flow you need, and we will confirm from the datasheet whether this GFR300 with G3/8 ports suits it before you order.
The A code in GFR300C10AJC2WG specifies an automatic drain, which discharges the condensate collected in the bowl without anyone having to open it - useful on lines that run unattended. The GFR family also offers manual drains and a differential-pressure drain as the default, so you can match the drain to how the unit is operated. The drain choice also sets the regulating range: with an automatic drain it is 0.15-0.9 MPa (20-130 psi).
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.