The AirTAC GFR300C10AJC2W AirTAC Filter Regulator 3/8" PT, 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 GFR300C10AJC2W is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is sized for PT3/8 (3/8 in) ports, carries a 5 um filter element for finer filtration than the standard 40 um grade, and drains condensate automatically, so the bowl does not depend on a manual drain routine. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and the fitted round pressure gauge reads in psi. Maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl suits this size class (size 600 units use an aluminium alloy bowl), and this variant is supplied without a mounting bracket.
This is a genuine AirTAC part. The GFR filter-regulator family spans sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um (W) filtration, gauge or no gauge in MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR300C10AJC2W AirTAC Filter Regulator 3/8" PT, 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 a workshop pneumatic press: the 5 um element captures fine particulate before it reaches valve seats, the regulator holds a steady working pressure to the cylinder circuit, and the automatic drain clears condensate without a daily walk-round.
Conditioning air for conveyor-mounted stopper and pusher cylinders on a packaging line: filtered, regulated air keeps the actuators consistent through the shift, and the automatic drain suits a header drop that is not drained by hand.
Supplying air to laboratory automation and test-rig actuators: the 5 um grade suits equipment sensitive to fine particles, the psi gauge gives a readable setpoint for documented processes, and the PT3/8 port matches typical rig drops.
Start with the port step: GFR300 in PT3/8 sits mid-range in the family, and the right size depends on the air demand of the line it feeds - step up to GFR400 or GFR600 for larger demand, down to GFR200 for smaller circuits. Because flow is published as curves rather than a single rating, ask us to check the curve against your application before ordering. For the media side, this unit's 5 um element suits applications that need finer particulate capture than the standard 40 um grade; the automatic drain suits points that are not visited daily, while manual and differential-pressure drains remain available in the family. The round psi gauge is fitted here; square embedded gauges and MPa or bar scales are alternatives. Thread is PT as standard, with G and NPT available as order options, and a mounting bracket can be added if this no-bracket variant does not suit your panel.
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 GFR300 series as curves, not as a single rated number, so we do not quote a figure here. Tell us your application's air demand and we will confirm the relevant datasheet curve and sizing on request before you order.
The automatic drain expels collected condensate on its own, which suits installations that are not checked daily; manual and differential-pressure drain versions exist if you prefer a different routine. The 5 um element (code W) filters more finely than the 40 um standard grade - choose it where downstream equipment needs cleaner air, and note the maximum inlet pressure is 1.0 MPa (145 psi) with an operating range of -5 to 70 C.
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.