The AirTAC GFR300C08LC2T 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 GFR300C08LC2T is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 unit has a 1/4 in NPT port, a polycarbonate bowl with differential-pressure drain, a 40 um standard filter element, and a round pressure gauge reading in psi. It is the low-pressure (L) regulator type rather than the standard type, a mounting bracket is included, and 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 ports from 1/8 to 1 in, and the catalogue options include automatic, manual or differential-pressure drains, a 5 um (W) filter element, embedded square or external round gauges in MPa, psi or bar scales, and G (BSPP) or NPT threads alongside the PT standard. Flow is published as curves rather than a single rating, so ask us to confirm sizing data or the full datasheet for this model on request.
| Model | GFR300C08LC2T 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) |
Hold a steady, reduced supply pressure for spray guns and air-assisted atomisation on a finishing line, with water and 40 um particulate stripped out ahead of the guns.
Feed the small-bore cylinders and actuators of a carton-sealing or labelling machine from a 1/4 in drop, keeping the supply held at the set point through each machine cycle.
Regulate bench air for pneumatic test rigs and sample-handling fixtures that run at modest pressures, with a psi gauge for direct reading at the bench.
Choose the size and port against the air consumption of the circuit: this unit is size 300 with a 1/4 in NPT port, and larger sizes carry larger ports and more flow. The low-pressure (L) regulator type is the key decode here - use it where the circuit runs at reduced supply pressures, and note that its exact adjustment range is not published, so confirm it with us before ordering. The drain is the differential-pressure type (the default); automatic (A) and manual (M) drains are orderable alternatives. The 40 um element is standard; specify W for 5 um where finer filtration is needed. The thread here is NPT; G (BSPP) and PT are the other catalogue options. The gauge reads in psi on a round dial; square embedded gauges and MPa or bar scales are also available. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application 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, downstream demand and this model code, and we will confirm the flow figures from the datasheet on request.
GFR is the filter-regulator family and 300 is the size. C2 is the round gauge with psi scale, L is the low-pressure regulator type instead of the standard type, and T is the NPT thread (PT and G are the other catalogue options). The exact adjustment range of the low-pressure version is not published, so confirm it with us before ordering.
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.