The AirTAC GFR300C08AJF2 AirTAC Filter Regulator PT1/4, 40 um 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 GFR300C08AJF2 is a filter regulator: water and particulate removal plus pressure regulation combined in one body with a drain bowl. This configuration has PT1/4 (1/4 in) ports, a 40 um filter element, an automatic drain, an embedded square gauge reading in psi, and a standard regulator adjustable from 0.15 to 0.9 MPa (20-130 psi). No mounting bracket and no check valve are fitted with this code. Maximum inlet pressure is 1.0 MPa (145 psi), the working temperature range is -5 to 70 C (non-freezing), and the size 300 bowl is polycarbonate.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and options include a 5 um element (code W), manual or differential-pressure drains, MPa or bar gauge scales, an external round gauge, G or NPT threads, and a mounting bracket. AirTAC publishes flow as curves rather than a single rated figure, so we confirm flow and other datasheet figures on request before you order.
| Model | GFR300C08AJF2 AirTAC Filter Regulator PT1/4, 40 um |
|---|---|
| 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) |
Fit at the drop feeding a plant's pneumatic press cells so each station receives filtered air regulated to its set pressure, with condensate expelled automatically instead of by daily manual draining.
On a bottling or cartoning line, this filter regulator cleans and regulates the air driving pick-and-place and clamp cylinders, keeping water and debris out of seals and valves.
Feed bench-top test rigs or lab instruments that need a stable, regulated 1/4-inch air supply, with the psi-scale square gauge keeping set pressure visible at a glance.
Choose the size and port step against the air demand of the line: this unit is size 300 with PT1/4 ports. Because AirTAC publishes flow as curves and not as a single rating, ask us to confirm sizing against your application before ordering. On drain type, this code carries the automatic drain; manual (M) and differential-pressure (blank) versions exist, and note the regulation range differs by drain type (0.05-0.9 MPa with manual drain versus 0.15-0.9 MPa here). Filtration is the 40 um standard element; specify 5 um (code W) where finer filtration is needed. The gauge here is the embedded square type with a psi scale; MPa or bar scales and an external round gauge are order options. Thread is PT as standard, with G (BSPP) and NPT available as catalogue options. This code omits the mounting bracket (J); brackets can be ordered.
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 this series as curves rather than a single rated figure, so we do not quote a number here. Send us your application details (pressure, port size, downstream demand) and we will confirm the datasheet flow curve and check the sizing for you on request.
The A in this code specifies the automatic drain, which expels collected condensate without daily attention. The GFR300 series is also available with a manual drain (M) or the differential-pressure drain (blank); note the regulator adjustment range differs by drain type: 0.15-0.9 MPa (20-130 psi) on this automatic-drain unit versus 0.05-0.9 MPa (7-130 psi) with a manual drain.
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.