The AirTAC GFR300C08ANT AirTAC Filter Regulator 1/4 in NPT 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 GFR300C08ANT is an AirTAC GFR300 filter regulator: a single body that removes water and particulate from compressed air and then regulates downstream pressure. This configuration has a 1/4 in NPT port, a 40 um standard filter element, and an automatic drain that expels collected condensate without manual attention, so it suits lines that run unattended. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and this unit is ordered without a gauge (code N), so add a separate gauge if visual pressure indication is needed at the point of use.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, PT as the standard thread and G or NPT as order options, a choice of differential-pressure, automatic or manual drain, a 5 um element (code W) where finer filtration is needed, and gauge or no-gauge variants. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C08ANT AirTAC Filter Regulator 1/4 in NPT |
|---|---|
| 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) |
Feeds filtered, regulated air to the cylinders and actuators on a packaging line, with the automatic drain keeping condensate off the machine during long unattended shifts.
Supplies clean air at a stable set pressure to conveyor gate and clamp cylinders, protecting downstream valves from water and particulate carryover.
Serves as the filter-regulator stage at the inlet of a control panel or manifold, delivering 40 um-filtered air at a fixed setting to the branch circuits it feeds.
Size 300 with a 1/4 in NPT port is the right step when your line's flow demand sits in the mid range of the GFR family; step up to size 400 or 600 for larger ports and flow, or down to size 200 for compact points of use. Choose the automatic drain fitted here for unattended or hard-to-reach installations; manual or differential-pressure drains are available on other variants. The 40 um element is the standard grade; specify code W for 5 um where finer pre-filtration matters. This unit has no gauge, so plan external indication if operators need to read the set pressure. NPT is the thread ordered here, with PT standard and G available as options, and a mounting bracket is included.
Because flow is published as curves rather than a single rating, we do not quote a rated flow number. Send us your application details 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 GFR300 series as curves rather than a single rated figure, so we do not quote a rated flow number. Tell us your application and we will confirm the datasheet flow figures and check the sizing for you before you order.
The N in the code means no gauge is fitted, so pressure indication must be added separately if your operators need to read the set point. The A means an automatic drain, which expels collected condensate from the bowl on its own; the adjustment range with automatic drain is 0.15-0.9 MPa (20-130 psi).
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.