The AirTAC GFR300C08LF3WTK 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 GFR300C08LF3WTK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single 300-size body with a 1/4 in NPT port. This configuration carries the W code for a 5 um filter element, a differential-pressure drain that ejects collected condensate automatically when the pressure differential rises, and the L code for the low-pressure regulator type. A square pressure gauge graduated in bar is fitted, a reverse/check valve is included, the bowl is metal, and a mounting bracket comes as standard.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options including manual or automatic drains, a 40 um standard element, alternative gauge scales, G or NPT threads, and combinations with or without gauge, bracket or check valve. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C08LF3WTK 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) |
Feeds filtered, regulated air to the low-pressure cylinders and grippers on a packaging line. The 5 um element protects directional valves from particulate and the bar-scale gauge lets technicians set and verify the working pressure at the machine.
Conditions the compressed air feeding benchtop analyzers and test rigs that require clean, regulated low-pressure air. The differential-pressure drain keeps condensate out of the instrument line and the check valve holds the setting if the shop supply dips.
Supplies filtered, regulated air to air-jet nozzles that clear dust and debris from products travelling along a conveyor. The included bracket mounts the unit close to the point of use and the metal bowl withstands duty near the line.
Size and port set the capacity envelope: this unit is a 300-size body with a 1/4 in NPT port, one step up from the 200 series. Because flow is published only as curves and not as a single rated figure, send us your required flow and we will confirm the right size against the datasheet before you order. The 5 um element (code W) suits downstream equipment that needs finer filtration than the 40 um standard element; the differential-pressure drain is the default and needs no operator action, while manual and automatic drains are available elsewhere in the range. The fitted square gauge reads in bar; MPa and psi scales and an external round gauge are catalogue options. The L code marks this as the low-pressure regulator type - its exact regulation range is not published, so confirm it with us. NPT thread is specified here; PT is the standard thread and G (BSPP) is also an order option. A bracket is included and the check valve holds downstream pressure when the upstream supply drops.
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 there is no one rated flow number we can quote for this 300-size, 1/4 in NPT unit. Send us your required flow and operating conditions and we will confirm the sizing from the datasheet before you order.
The differential-pressure drain is the default drain on this unit: it discharges collected condensate automatically when the pressure differential across the element rises, with no operator action. The L in the model code marks the low-pressure regulator type; its exact regulation range is not published in the catalogue, so confirm the range with us for your set pressure.
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.