The AirTAC GFR300C08LF2WT 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 GFR300C08LF2WT is a size-300 filter regulator: it removes water and particulate from compressed air and holds downstream pressure at a set point in one compact body. This configuration is a low-pressure type with a 1/4 in NPT port, 5 um filtration (code W), a differential-pressure drain that bleeds collected condensate automatically whenever the pressure drop across the element is high enough, and a fitted embedded square gauge reading in psi. A mounting bracket is included and the polycarbonate bowl suits general indoor plant air.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, a choice of differential-pressure, automatic or manual drain, 40 um standard or 5 um filtration, PT, G or NPT threads, and MPa, psi or bar gauge scales. Flow is published as curves rather than a single rating, so ask us to confirm the figures for your application before ordering.
| Model | GFR300C08LF2WT 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 light clamping and hold-down cylinders on a packaging conveyor where product must be gripped at reduced pressure, with the 5 um element keeping debris out of the valve stack.
Conditions the air feeding a laboratory analyser or sample-handling actuator that runs at low pressure and needs water and 5 um particulate removed before sensitive components.
Sits at the drop of a bench or fixture circuit where delicate pressing, testing or positioning operations need a stable, reduced set point rather than full line pressure.
Size up or down (200/300/400/600) against the flow your line needs - the 300 size with a 1/4 in port suits compact circuits, and we will check the published flow curves against your demand before you commit. Choose the drain to match maintenance habits: differential-pressure (this unit) drains itself on pressure drop, automatic drains on a cycle, manual needs a routine bleed. Filter grade is 5 um here (40 um is the standard option) - pick 5 um where downstream valves or instruments want cleaner air. The square gauge is fitted in a psi scale; MPa and bar scales and an external round gauge are order options. Thread is NPT on this unit; PT and G are catalogue options. A bracket is included.
Because flow is published only as curves, not a single rated figure, send us your application details and we will confirm sizing from 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 this series as curves, not as a single rated figure, so there is no one number we can quote honestly. Send us your application details and we will confirm the relevant flow figures from the datasheet before you order.
This unit is the low-pressure version of the GFR300 filter regulator, intended for circuits that run well below standard line pressures. Its exact adjustment range is not published on the sheet we work from, so ask us to confirm it from the datasheet for your set point.
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.