The AirTAC GFR300C10AF1T AirTAC Filter Regulator 3/8 in NPT 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 GFR300C10AF1T is a size-300 filter regulator: water and particulate filtration plus downstream pressure regulation combined in one body. This configuration is threaded 3/8 in NPT, carries the standard 40 um filter element, and is fitted with an automatic drain, so collected condensate is expelled without manual attention. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), and the embedded square gauge reads in MPa so set pressure is visible at a glance. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The polycarbonate bowl suits this size, and a mounting bracket is included. No reverse (check) valve is fitted on this variant.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, an optional 5 um element (code W), gauge scale options, and PT, G or NPT threads. Published flow data appears as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR300C10AF1T AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| 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 air cylinders on a stamping or clamping station: the 40 um element stops scale and pipe debris reaching the cylinder seals, while the regulator holds a steady set pressure so cycle force stays repeatable. The automatic drain keeps condensate out of the circuit without an operator walking the line.
A wall-mounted supply point for spray guns and air tools at a finishing bench. Clean, regulated air protects the finish and the tools, the MPa square gauge gives a clear setpoint readout, and the included bracket makes straightforward mounting on the bench frame.
Supplying diverters, pushers and stopper cylinders on a packaging conveyor line. The filter-regulator in one body saves panel space on the machine's air preparation plate, and the automatic drain handles moisture build-up on lines that run across shifts.
Start with the port step: this unit is 3/8 in NPT in size 300; step up to size 400 or 600 if your line needs more flow capacity, or down to 200 for compact circuits. Choose the drain to match access: automatic (as fitted here) for unattended duty, manual where you prefer a controlled blow-down, or the differential-pressure default. The standard element is 40 um; specify code W for 5 um where finer pre-filtration matters. Gauge scale can be ordered in MPa, psi or bar, and an external round gauge is available instead of the embedded square type. Thread is PT as standard, with G and NPT as orderable options; a bracket is included on this variant.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, so we do not state a flow figure here. Send us your application details and we will confirm the datasheet figures against your required flow 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 flow for the GFR family as characteristic curves rather than a single rated figure, so we do not quote a flow number. Tell us your application and required flow, and we will confirm the datasheet curve figures for this 3/8 in, size-300 unit against your demand before you order.
This configuration carries code A, the automatic drain, which expels collected condensate on its own - useful where the unit is mounted in a hard-to-reach spot or the line runs unattended. The family is also available with a manual drain or the differential-pressure default; note that the regulator adjustment range differs by drain type, with the automatic and differential-pressure versions covering 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.