The AirTAC GFR300-10LC1T 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 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 GFR300-10LC1T is a filter regulator: water and particulate removal plus downstream pressure regulation combined in one compact body. This size 300 unit is fitted with a 3/8 in NPT port, a 40 um filter element, a differential-pressure drain on the PC bowl, and the low-pressure regulator type. An external round gauge on the MPa scale is fitted so the set pressure is readable at a glance, and the mounting bracket is included. The maximum working (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 series is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drain, a 5 um element option, square or round gauges on MPa, psi or bar scales, and G, NPT or PT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR300-10LC1T AirTAC Filter Regulator NPT3/8 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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, MPa 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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)). |
| L | Low-pressure 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. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeds and regulates the air to a clamping fixture that must hold workpieces at a gentle, stable pressure, with the 40 um element keeping seal debris out of the clamp cylinders.
Supplies filtered, regulated air to packaging machinery where delicate cartons or film are moved or formed at reduced pressure, with the differential-pressure drain carrying condensed water away during operation.
Provides a clean, low-pressure regulated air branch for positioners, actuators and pilot devices on a process panel, with the fitted MPa gauge giving a local pressure readout.
Choose the size and port step against the air demand of the circuit: this unit is size 300 with a 3/8 in NPT port, and larger sizes carry larger ports and more flow. The 40 um element is the standard grade; a 5 um element (code W) is available if finer filtration is needed. Drain choice is differential-pressure (as fitted here), automatic, or manual. Gauges are offered as the embedded square type or an external round gauge, on MPa, psi or bar scales - this unit carries the round gauge on MPa. Threads are PT as standard, with G (BSPP) and NPT as order options; this unit is the NPT version. A bracket is included, and a reverse/check valve can be ordered as an option. Note that the low-pressure regulator type in this configuration has its exact regulation range confirmed on the datasheet rather than quoted as a single published figure. Because flow is published as curves rather than one rating, 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, not as a single rated number, so we do not quote a figure here. Tell us your application and we will confirm the flow and sizing from the datasheet on request.
The L in the code marks the low-pressure regulator type, intended for circuits regulated below the standard type's range. The exact regulation range for this configuration is confirmed on the datasheet rather than published as a single figure - ask us and we will confirm it. The fitted round gauge on the MPa scale lets you read the set pressure directly.
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.