The AirTAC GFR300C10AJF2TK AirTAC Filter Regulator NPT3/8 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 GFR300C10AJF2TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This size 300 unit has a 3/8 in NPT port, an automatic drain that bleeds collected condensate from the metal bowl without manual attention, a standard 40 um filter element, and an embedded square gauge reading in psi. A reverse/check valve is fitted, and the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi). Maximum inlet pressure is 1.0 MPa (145 psi) and the operating 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 ports from 1/8 to 1 in, and options include manual or differential-pressure drains, a 5 um element (code W), G (BSPP) or NPT threads, gauge scale choices and a reverse/check valve. Flow for this series is published as curves rather than a single rating, so ask us to confirm the figures for your application and we will send the datasheet.
| Model | GFR300C10AJF2TK AirTAC Filter Regulator NPT3/8 |
|---|---|
| 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 for the stopper and pusher cylinders along a bottling conveyor, with the automatic drain handling condensate at a station that is not checked every shift.
Feeds the workpiece clamps on a machining centre, holding a steady set pressure downstream so clamp force does not drift as shop air pressure fluctuates.
Conditions the air feeding spray guns and air-assisted applicators in a finishing booth, dropping water and particles before the regulator sets gun supply pressure.
Step up or down through the GFR sizes (200, 300, 400, 600) to match the port and flow path your line needs; this unit sits at size 300 with a 3/8 in NPT port. The automatic drain suits points where nobody regularly walks the bowl, while manual and differential-pressure drains remain available in the family. The standard element is 40 um; specify code W for 5 um where finer particulate removal matters. The square gauge here reads psi, with MPa and bar scales offered, and G (BSPP) or NPT threads can be ordered instead of the PT standard. A no-bracket build (code J) is fitted, so plan your own mounting. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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 series as curves rather than a single rated figure, so we do not quote one number. Tell us your inlet pressure, set pressure and expected consumption, and we will confirm the sizing from the datasheet curves and send them to you on request.
The A in the code sets the automatic drain, which expels collected condensate from the metal bowl on its own, useful at unattended or infrequently visited stations. The K sets a reverse/check valve, which holds downstream pressure if the upstream supply is interrupted. Both are decodable choices; manual or differential-pressure drains and a build without the valve are available in the family.
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.