The AirTAC GFR300C08LC2 AirTAC Filter Regulator 1/4 in PT 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 GFR300C08LC2 is an AirTAC GFR-series filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure at your setpoint. This unit is built on the GFR300 size with a 1/4 in PT port, the standard 40 um filter element, and a differential-pressure drain that bleeds condensate from the polycarbonate (PC) bowl as air flows through. It is the low-pressure (L) type, intended for circuits that run below standard regulator settings, and a mounting bracket is included. The fitted round gauge reads in psi for easy setpoint checks. 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 four sizes (200, 300, 400 and 600) with ports from 1/8 to 1 in, and options including a 5 um element (code W), automatic or manual drains, embedded square or external round gauges in MPa, psi or bar scales, and G or NPT threads in place of PT. AirTAC publishes flow for this series as curves rather than a single rating, so ask us to confirm the flow and datasheet figures for your application before ordering.
| Model | GFR300C08LC2 AirTAC Filter Regulator 1/4 in PT 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) |
On a hot-glue dispensing skid, the unit filters plant air to 40 um and holds a reduced, stable pressure to the diaphragm pump's air motor, while the differential-pressure drain keeps condensate out of the pump's check valves.
Low-pressure spray guns in a paint finishing booth need clean, steady air; this filter regulator sets the gun supply pressure against the round psi gauge and its polycarbonate bowl sheds water before it reaches the finish.
On a carton-packing conveyor, gripper and pusher cylinders run at a lower pressure than the plant main; the low-pressure type regulator holds that setpoint and the 40 um element protects the cylinder seals from line debris.
Every choice in this series is decodable from the code. Step up or down a size (200, 300, 400, 600) to match the port and the flow your line needs - this unit carries a 1/4 in PT port, with G (BSPP) and NPT available as order options. Choose the drain: differential-pressure (this unit), automatic (A) for unattended condensate removal, or manual (M) where you drain on a schedule. The standard element is 40 um; specify W for the 5 um grade when downstream equipment needs finer filtration. Gauges come as an embedded square gauge or an external round gauge (this unit) in MPa, psi or bar scales, and a bracket is included unless code J is specified. Because AirTAC publishes flow as curves rather than a single rated figure, send us your flow and pressure requirements 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 flow for the GFR series as performance curves rather than a single rated figure, so there is no one l/min or SCFM number we can quote. Send us your flow and pressure requirements and we will confirm the sizing from the datasheet on request.
L marks the low-pressure type of regulator. It is built for circuits that run below standard regulator settings, and its adjustment range differs from the standard type; we confirm the exact range from the AirTAC datasheet on request.
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.