The AirTAC GFR300C08LF2GK AirTAC Filter Regulator G1/4 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 GFR300C08LF2GK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your setting, all in a single body. This GFR300 configuration has a G1/4 (1/4 in) port, the low-pressure regulator type, standard 40 um filtration, a differential-pressure drain, an embedded square gauge reading in psi, a built-in reverse (check) valve, and a mounting bracket. The bowl on this size is polycarbonate. 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 from the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in and options including automatic or manual drains, 5 um (W) filtration, alternative gauge scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm sizing and any datasheet figure against your application before you order.
| Model | GFR300C08LF2GK AirTAC Filter Regulator G1/4 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) |
Filters and regulates the supply to pneumatic clamps and fixtures on a machining centre, holding a reduced, steady setting while the 40 um element keeps actuator air free of water and swarf.
Conditions air feeding cylinders and grippers on a carton-sealing or wrapping line, with the fitted check valve holding the downstream setting if the upstream supply dips.
Provides filtered, regulated pilot air to low-pressure pilot regulators and sensors on a test bench, where the square psi gauge gives a direct readout in the scale used on US equipment.
Within GFR300 you step port size (1/4 in here) against the air demand of your circuit - larger sizes carry larger ports. Drain choice is differential-pressure (this unit), automatic (A) or manual (M); filtration is 40 um standard or 5 um with code W; the gauge can read MPa, psi or bar and be an embedded square or optional external round type; thread is PT as standard with G and NPT as order options; a bracket is included here. The low-pressure (L) regulator type suits circuits that hold a lower setting than the standard type covers. Because AirTAC publishes flow only as curves, not a single rated figure, send us your application details and we will confirm sizing from 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 GFR300 flow as curves rather than a single rated figure, so there is no one number we can honestly quote. Tell us your inlet pressure, set pressure and expected air demand, and we will confirm sizing from the datasheet on request.
L is the low-pressure regulator type, which covers lower settings than the standard GFR300; K means a reverse (check) valve is fitted, so downstream pressure is held if the upstream supply drops. The embedded square gauge on this unit reads in psi; MPa and bar scales are also available.
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.