The AirTAC GFR300C10LC2TK 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 GFR300C10LC2TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 unit is threaded NPT 3/8 in and is the low-pressure type, so it is aimed at circuits that run below standard regulated pressures; the exact adjustment range for the low-pressure type is not published, and we confirm it from the datasheet on request. Filtration is the standard 40 um element, the bowl drains by differential pressure, an external round gauge with a psi scale is fitted, a reverse/check valve is built in, and the mounting bracket is 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 series is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, a 40 um standard or 5 um (W) filter element, standard or low-pressure regulation, embedded square or external round gauges in MPa, psi or bar scales, an optional reverse/check valve, and PT (standard), G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm flow and datasheet figures for your application.
| Model | GFR300C10LC2TK 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) |
Feeds and regulates air to pneumatic clamps and swing cylinders that hold workpieces during milling or drilling, where the circuit is designed to run at reduced regulated pressure rather than full line pressure.
Conditions and regulates the air feeding diverters, pushers and gate cylinders along a packaging conveyor, with the check valve holding the regulated circuit if upstream supply dips.
Serves as the point-of-use filter regulator on a bottling line's low-pressure control circuit, cleaning the air of water and particles before it reaches positioner and pilot valves.
Start with the port step: size 300 in NPT 3/8 in sits mid-range in the GFR line, so step up to size 400 or 600 if your line may grow, or down to 200 if the circuit is small - sizing against required flow is the real decision, and since flow is published as curves rather than a single rating, ask us to confirm the fit before ordering. This unit is the low-pressure type; if your process regulates near standard pressures, the standard GFR version is the alternative. Other decodable choices: drain type (differential-pressure as here, automatic, or manual), filter grade (40 um standard, 5 um with code W for finer filtration), gauge scale (MPa, psi or bar, embedded square or external round), thread (PT is the standard; G and NPT are order options such as this NPT version), and the bracket, which is included here.
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 l/min or SCFM number we can quote honestly. Tell us your line pressure, regulated setpoint and expected consumption, and we will confirm the sizing against the datasheet curves before you order.
C2 decodes as an external round gauge fitted with a psi scale. The embedded square gauge is the standard fitting, and round or square gauges are available in MPa, psi or bar scales, so you can order the same unit with a different gauge code if your panel reads in another unit.
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.