The AirTAC GFR300C10LF2T 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 GFR series combines two jobs in one body: it filters water and particulate out of compressed air and regulates downstream pressure. This GFR300C10LF2T is the size 300 unit built with 3/8 in NPT threads, a 40 um filter element, and low-pressure regulation. It carries a differential-pressure drain, a metal bowl to collect condensate, an embedded square gauge reading pressure in psi, and a mounting bracket; no reverse (check) valve is fitted. 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 spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, a choice of differential-pressure, automatic or manual drains, an optional 5 um element (code W), G (BSPP) and NPT thread options alongside the PT standard, and square or round gauges scaled in MPa, psi or bar. Flow for this series is published as curves rather than a single rating, so ask us to confirm sizing and any datasheet figure against your application before ordering.
| Model | GFR300C10LF2T 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) |
Supply air to clamp cylinders on a machining fixture: the filter stage catches water and pipe scale before the clamp valves, while the low-pressure regulator lets the circuit hold a gentle, repeatable clamp setting below full line pressure.
Feed a spray gun from a booth air drop: the 40 um element keeps condensate and rust particles out of the finish, and the regulator lets the operator trim pressure down for delicate spray work, with the psi gauge giving a local readout.
Position air for pilot-operated process valves on a water-treatment or chemical-dosing skid, where setpoints sit well below full line pressure and a filtered, regulated supply protects the pilot valves and actuators.
Size the unit by port and demand: this size 300 body carries 3/8 in NPT threads, and the family steps from 200 up to 600 as flow and port size grow. The 40 um element fitted here is the standard grade; specify code W for the 5 um element when finer filtration is needed. Drain choice matters in service: the differential-pressure drain fitted here works from the pressure difference across the unit, while automatic and manual drain variants are available in the same size. The embedded square gauge reads psi; a round external gauge and MPa or bar scales are order options. The L in the code marks the low-pressure regulator type, whose exact adjustment range is not published, so confirm it with us against your set pressure.
Thread is a real order decision: PT is the catalogue standard, with G (BSPP) and NPT as options - this unit is built with NPT. A mounting bracket is included. Because flow is published as curves and not as a single rating, ask us to confirm sizing against your line pressure, set pressure and air demand 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 figure, so we do not quote a number here. Send us your line pressure, set pressure and expected air demand, and we will confirm the sizing and the datasheet figures on request.
This unit uses the differential-pressure drain, which discharges collected condensate using the pressure difference across the filter, so there is no drain valve for an operator to open on a schedule. If you prefer a different arrangement, automatic-drain and manual-drain variants are available in the same size 300 body.
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.