The AirTAC GFR300C10ALF1TK AirTAC Filter Regulator NPT3/8 Low-Pressure 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 GFR300C10ALF1TK is a filter regulator: water and particulate filtration plus pressure regulation combined in one body. This size 300 unit carries a 3/8 in NPT port, a 40 um filter element and an automatic drain that bleeds collected condensate from the metal bowl without manual attention. It is the low-pressure regulator type and ships configured with an embedded square gauge scaled in MPa, a reverse-flow (check) valve fitted, and a mounting bracket included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 covering ports from 1/8 in to 1 in, with automatic, manual or differential-pressure drains, a 5 um element option (code W), gauge scale choices and G, NPT or PT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing or any datasheet figure for your application before ordering.
| Model | GFR300C10ALF1TK AirTAC Filter Regulator NPT3/8 Low-Pressure |
|---|---|
| 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 filtered, regulated air to the cylinder and actuator circuits of a cartoning or wrapping line, with the automatic drain keeping condensate out of the bowl during continuous shifts.
Regulating supply to a pneumatic clamping or holding fixture on a machining cell where the process calls for a lower regulated pressure than a standard regulator build is set up for.
Supplying the control valves and cleaning-air jets along a conveyor system, with the 40 um element and check valve protecting downstream components from water, debris and reverse flow.
Step through the decodable choices: pick the size and port against the pipe and the flow your line needs (here 3/8 in NPT on the 300 frame); choose the drain - automatic like this unit, manual, or differential-pressure; choose the element grade, 40 um standard or 5 um (code W) for finer particulate; pick the gauge scale (MPa, psi or bar) and embedded square or optional external round gauge; and confirm the thread, since PT is the catalogue standard while G and NPT are ordered options like this NPT build. Bracket and reverse-flow valve can be included or omitted. The honest routing: flow is published as curves, not a single rating, and the exact adjustment range of the low-pressure regulator build is not stated in our data, so ask us to confirm both 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 this series as curves, not as a single rated figure, so we do not quote a l/min, m3/h or SCFM number here. Tell us your application and we will confirm the flow and sizing from the datasheet on request before you order.
Code A in the model means the automatic drain: condensate collected in the metal bowl is expelled without operator attention, which suits unattended or continuously running equipment. The family also offers manual drain (code M) and the differential-pressure drain as the default; the 40 um element is standard and a finer 5 um element is available as code W.
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.