The AirTAC GFR300C08AJC2TK AirTAC Filter Regulator NPT1/4 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 GFR300C08AJC2TK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your setpoint in a single body. This size 300 unit is threaded NPT1/4, drains condensate automatically, carries the standard 40 um filter element, and is fitted with an external round pressure gauge reading in psi plus a reverse (check) valve; no mounting bracket is included. Operating temperature is -5 to 70 C (non-freezing) and maximum inlet pressure is 1.0 MPa (145 psi).
This is a genuine AirTAC part from the GFR range, which spans sizes 200 to 600 with ports from 1/8 to 1 inch, a choice of automatic, manual or differential-pressure drains, 40 um or 5 um filtration (code W), and gauge scales in MPa, psi or bar. The standard regulator adjusts from 0.15 to 0.9 MPa (20-130 psi). Flow is published as curves rather than a single rating, so ask us to confirm the figures against your application.
| Model | GFR300C08AJC2TK AirTAC Filter Regulator NPT1/4 |
|---|---|
| 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) |
Feeding tool-clamp and chip-clearing cylinders on a machining centre, this GFR300 cleans the shop air and holds a steady setpoint at the machine's 1/4 in NPT inlet, with the automatic drain handling condensate between shifts.
On a carton-sealing or case-packing conveyor, the unit supplies flap-fold and taping cylinders with clean air at a stable pressure, and the round psi gauge lets line staff verify the setting at a glance.
In a pick-and-place robot cell, this filter regulator conditions air for gripper and clamp actuators, while the fitted reverse (check) valve prevents backflow out of the downstream circuit. Panel mounting requires a bracket ordered separately.
Choose the size step (200/300/400/600) and port to match the flow your line needs - here the size 300 body carries a 1/4 in NPT thread. Drain type matters: automatic drains suit unattended installations, manual suits periodic checks, and differential-pressure draining responds to flow; this unit drains automatically. The 40 um element is the standard grade; specify W for 5 um where finer filtration is needed. Gauge scale is selectable (MPa, psi or bar) - this configuration reads psi - and the thread can be ordered as PT (the standard), G (BSPP) or NPT. A mounting bracket is optional and is not included with this code. Because flow is published as curves rather than a single rated figure, send us your application details and we will confirm sizing 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 curves rather than a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow and sizing from the datasheet before you order.
This configuration drains condensate from the bowl automatically, which suits installations that run unattended. The GFR300 is also available with a manual drain or the differential-pressure drain as decode options, and the filter grade can be changed from the standard 40 um to 5 um (code W).
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.