The AirTAC GFR300C10LC2G AirTAC Filter Regulator G3/8 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 GFR300C10LC2G is a GFR-series filter regulator: one body that removes water and particulate from compressed air and then regulates the pressure delivered downstream. This size 300 unit has a G3/8 (BSPP) port, the low-pressure regulator type, a 40 um standard filter element and a differential-pressure drain that bleeds collected condensate away automatically as the pressure differential across the element rises. It is fitted with an external round gauge reading in psi, includes a mounting bracket, and carries a polycarbonate bowl rated for a maximum inlet pressure of 1.0 MPa (145 psi) over -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 inch, and can be ordered with manual or automatic drains, a 5 um (W) element, square or round gauges in MPa, psi or bar scales, and PT, G or NPT threads. Because AirTAC publishes flow as curves rather than a single rated figure, we confirm the datasheet and flow curves for your operating conditions on request.
| Model | GFR300C10LC2G AirTAC Filter Regulator G3/8 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) |
Filtering and stepping plant air down to a low, stable working pressure for carton-sealing cylinders and pick-and-place grippers on a packaging conveyor.
Cleaning and regulating compressed air at low pressure for loom and spinning-frame pneumatics, where gentle, consistent pressure protects lightweight mechanisms.
A point-of-use filter regulator for paint spray guns in a finishing booth, removing water and particles and holding the low gun pressure the finish requires.
Size and port are the first decision: 200, 300, 400 and 600 step up in port and flow capacity, so match the size to the air demand of the circuit rather than to the pipe alone; this unit is size 300 with a G3/8 port. Drain choice here is differential-pressure (the standard), with automatic (A) and manual (M) available when ordering. The 40 um element is the standard grade; specify W for the 5 um option if downstream equipment needs finer filtration. This configuration is the low-pressure regulator type, so if your circuit must hold a set pressure below the standard range, confirm the adjustable range with us before ordering. Gauge options are the embedded square gauge or an external round gauge in MPa, psi or bar scales - this unit carries a round psi gauge. Thread is G (BSPP) here; PT is the series standard and G or NPT are order options. A mounting bracket is included. AirTAC publishes flow as curves, not a single rating, so ask us to confirm sizing against your application before you order.
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 there is no one rated flow number we can quote. Send us your inlet pressure, set pressure and expected air demand and we will confirm the flow curves and datasheet figures for this exact model on request.
This unit carries the L option, so its regulator is the low-pressure type rather than the standard version. The exact adjustable range for the low-pressure configuration is not published on the sheet we transcribe from, so we confirm the settable range from the AirTAC datasheet on request before you order.
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.