
The AirTAC AirTAC GFR300-10 Filter Regulator (GFR30010C4W) 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 GFR30010C4W combines filtration and pressure regulation in a single G-series body. It is configured with a 3/8 in PT port, a 5 um filter element for finer water and particulate removal than the standard 40 um grade, a differential-pressure drain, and an external round gauge scaled in psi for teams working to US units. The 300-size bowl is polycarbonate, and the regulator covers 0.15-0.9 MPa (20-130 psi).
This is a genuine AirTAC part in the GFR300 series. The G-series range spans 200 to 600 sizes, G/NPT/PT threads and automatic or manual drains. Flow figures are published as curves rather than one rating, so we confirm the datasheet and sizing on request.
| Model | AirTAC GFR300-10 Filter Regulator (GFR30010C4W) |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (PT thread) |
| Filtering grade | 5 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 — round, 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. |
|---|---|
| 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)). |
| (blank) | Standard 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. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Regulates and filters the air driving divert gates and stoppers along a parcel-sort conveyor, with the psi gauge letting maintenance staff set pressures in the units used plant-wide.
Conditions air for tail-lift and door actuation circuits built into delivery truck bodies, where the 5 um element keeps fine debris out of the control valves.
Supplies filtered, regulated air to pneumatic pulse tools at an assembly bench, holding one setpoint read directly in psi on the round external gauge.
The 3/8 in port on the 300 body is the mid step between 1/4 in (200 size) and 1/2 in (400 size); size the unit to your piping and demand rather than defaulting to the largest body. The 5 um W element suits cleaner circuits, while the 40 um grade stays available. The psi-scale round gauge suits US-reading panels; bar and MPa scales exist on other variants. PT is the standard thread, with G and NPT as catalogue options, and the bracket is included.
Because flow appears only as curves in the catalogue, ask us to confirm sizing against your application 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.
There is no single rated-flow figure to quote: AirTAC publishes this series' performance as flow curves. Tell us your inlet pressure and required demand and we will confirm the datasheet values for this 3/8 in, 300-size unit on request.
C selects the external round gauge and 4 selects the psi scale, so this model reads in psi where the C3 variant reads in bar. Filtration, port and regulation are identical: 5 um element, 3/8 in PT, 0.15-0.9 MPa adjustment.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.