The AirTAC GFR300C08LC2TK AirTAC Filter Regulator NPT1/4 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 GFR300C08LC2TK is a GFR-series filter regulator: one body removes water and particulate from compressed air and holds a regulated downstream pressure. This unit is built on the 300 size with 1/4 in NPT ports, carries the L low-pressure regulator type for reduced set pressures, and is supplied with a differential-pressure drain, a 40 um filter element, an external round pressure gauge scaled in psi, a reverse (check) valve and a mounting bracket. The bowl on this 300 size is polycarbonate (only the 600 size uses aluminium alloy).
This is a genuine AirTAC part. The GFR family spans the 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um standard or 5 um (W) filtration, embedded square or external round gauges scaled in MPa, psi or bar, G and NPT thread options and bracket choices. Flow is published as curves rather than a single rating, so ask us to confirm sizing and any datasheet figure for your application before ordering.
| Model | GFR300C08LC2TK AirTAC Filter Regulator NPT1/4 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. |
|---|---|
| C0 | 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-C0 (two-unit set) |
Filtered, regulated air to clamping fixtures on a CNC machining centre, with the fitted check valve helping hold the clamp circuit if the upstream supply dips.
Point-of-use air prep for cylinders and grippers on a carton-sealing or labelling conveyor, with the 40 um element taking water and pipe debris out ahead of the directional valves.
Clean, reduced-pressure air for spray guns and air tools in a woodwork or paint finishing booth, where the low-pressure regulator type suits reduced set pressures.
Your real choices on this family are the size and port step (200/300/400/600, 1/8 in to 1 in) matched to the air demand of the circuit; the drain type - differential-pressure (as fitted here), automatic (A) or manual (M); the filter element at 40 um standard or 5 um with code W; the gauge (embedded square as standard or external round, scaled in MPa, psi or bar); the thread (PT is the standard, with G and NPT as order options); and whether a bracket is included. This code also adds the L low-pressure regulator type and a K reverse/check valve. Because flow is published as curves rather than a single rated figure, send us your application details and we will confirm sizing against the datasheet 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 GFR flow as curves, not as a single rated number, so we do not quote a rated flow, Cv or SCFM here. Send us your application - port size, expected air demand and working pressure - and we will confirm the sizing and flow figures from the datasheet on request.
K shows that a reverse (check) valve is fitted, so air is prevented from flowing back upstream through the unit; codes without K are built without it. L marks the low-pressure regulator type - its exact adjustment range is not published in our sheet, so ask us to confirm it for your set pressure.
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.