The AirTAC GFR300C08LF2 AirTAC Filter Regulator PT1/4, 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 GFR300C08LF2 is a filter regulator: it strips water and particulate from compressed air and regulates downstream pressure in a single body. This unit is the size 300 frame with a PT 1/4 in port, the low-pressure regulator type, a 40 um standard filter element and a differential-pressure drain. The bowl is metal, an embedded square gauge with a psi scale is fitted, 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.
It is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options include automatic or manual drains, a 5 um element (code W), gauge scales in MPa, psi or bar, G or NPT threads, and bracketless variants. 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 | GFR300C08LF2 AirTAC Filter Regulator PT1/4, 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 feeds the low-pressure clamping actuators on the fixture; the 40 um element keeps condensate and swarf-carried debris out of the clamp cylinders, and the psi gauge shows the clamp set point at a glance.
The regulator holds a gentle, stable supply pressure to the gate cylinders so cartons are pushed without impact, while the filter section drops out water that would otherwise carry into the directional valves.
Instrument-actuated valves on the rig need clean air at a low, repeatable pressure; this low-pressure filter regulator provides both in one panel space, with the included bracket simplifying mounting inside the enclosure.
Choose the size and port against the flow your line needs: this is size 300 with a PT 1/4 in port, and the family steps through 200, 300, 400 and 600 with ports from 1/8 in to 1 in. Drain comes as differential-pressure (this unit), automatic (A) or manual (M), and the filter element is 40 um standard or 5 um with code W. The embedded square gauge here reads in psi; MPa and bar scales and an external round gauge are alternatives, and G or NPT threads can be ordered instead of PT. Add J to the code if you do not want the bracket.
Because this is the low-pressure type, confirm its adjustment range against your set pressure with us before ordering. Flow is published as curves, not a single rating, so send us your required flow and working pressure and we will confirm sizing from the datasheet.
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 rather than a single rated figure, so we do not quote a number here. Send us your required flow and working pressure and we will confirm from the datasheet whether this size 300, 1/4 in unit is correctly sized before you order.
Yes. This model carries the embedded square gauge with the psi scale (code F2). MPa and bar scales are catalogue alternatives, and an external round gauge is also available if you prefer a panel-facing dial.
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.