The AirTAC GFR300C10ALC3T 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 GFR300C10ALC3T is an AirTAC GFR filter regulator: it removes water and particulate from compressed air and reduces pressure in a single body. This size 300 unit has a 3/8 in NPT thread, an automatic drain that expels collected condensate without manual attention, the standard 40 um filter element, and a low-pressure regulator fitted with a round gauge scaled in bar. Maximum inlet pressure is 1.0 MPa (145 psi), the working temperature range is -5 to 70 C (non-freezing), a mounting bracket is included, and the bowl is metal.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, drain choices (differential-pressure, automatic or manual), a 5 um element option (code W), gauge scale options in MPa, psi or bar, and G (BSPP) or NPT thread variants. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and the datasheet for your application before ordering.
| Model | GFR300C10ALC3T 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) |
Point-of-use conditioning for a packaging machine running low-pressure actuators and sealing stations: water and particles are stripped out and the air is held at a reduced setting suited to low-pressure circuits, with the bar-scale gauge giving a clear local reading.
Feeding filtered, regulated air to stoppers, diverters and pushers along a conveyor line. The automatic drain clears condensate from the bowl on its own, so the unit keeps working on lines that are not visited for manual draining every shift.
Supplying clean, reduced-pressure air to a pneumatic component test bench where operators work at lower settings and prefer a bar-scale gauge, while the 40 um element protects the instruments and fittings downstream.
Sizing: step across sizes 200 / 300 / 400 / 600 and ports 1/8 to 1 in to match the air demand of your line - because flow is published as curves and not a single rating, ask us to confirm the right size against your application before ordering. Drain type: this code carries the automatic drain; manual and differential-pressure variants exist in the family if you prefer manual control or drain-on-pressure-drop behaviour. Filter grade: 40 um is standard; specify code W for the 5 um element where finer particulate removal is needed. Gauge: an embedded square gauge is standard and external round gauges come in MPa, psi or bar scales - this unit carries the round bar-scale gauge. Thread: PT is the standard; G (BSPP) and NPT are catalogue options, and this code is NPT. A mounting bracket is included (code J deletes it). Note that the regulator here is the low-pressure type; its exact setting range is not published, so confirm the range you need with us 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 family as curves rather than a single rated figure, so no one number is quoted here. Send us your application details - line pressure, downstream consumption and port size - and we will confirm the flow and the datasheet figures for this exact model on request.
The A in the code GFR300C10ALC3T specifies the automatic drain, which expels collected condensate from the bowl without anyone having to open it. The GFR family also offers a manual drain (code M) for hands-on control and a differential-pressure drain (blank) as the default; choose whichever matches how your installation is maintained.
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.