The AirTAC GFR300C08MLF2WT 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 GFR300C08MLF2WT is an AirTAC GFR-series filter regulator: water and particulate removal plus downstream pressure regulation in a single body. This 300-size unit is threaded NPT1/4 and carries the 5 um filter element (code W) for finer filtration than the standard 40 um grade. The metal bowl is fitted with a manual drain, so condensate is released by opening the drain valve at service intervals. The regulator is the low-pressure type, and an embedded square gauge with a psi scale is included so the set pressure is visible at the unit. A mounting bracket is included and no reverse (check) valve is fitted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and is ordered with your choice of drain type, filter grade, gauge scale and thread (PT is the catalogue standard, with G and NPT as options). Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C08MLF2WT 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) |
Point-of-use air prep for a robot gripper circuit: the 5 um element shields the gripper valve from particulate and condensed water, and the low-pressure regulator holds the gentle pressure grippers need. The included psi gauge lets the cell technician read the set point directly.
On a bottling or packaging line, this unit filters and regulates the air feeding low-pressure actuators and clamp cylinders. The manual-drain metal bowl is emptied during scheduled line cleaning, keeping condensate out of the downstream valves.
Mounted at the machine on its included bracket, this filter regulator conditions the air entering a CNC machining center's pneumatic panel: 5 um filtration ahead of sensitive components and a regulated, gauge-visible supply for tool-change and clamping circuits.
Step through the real choices when specifying a GFR unit. First match size and port to the air demand of the circuit: 200, 300, 400 and 600 step up in port and flow capacity, and this unit sits at 300 size with a 1/4 in NPT port. Second, choose the drain: manual (as here) means an operator drains the bowl periodically, while automatic and differential-pressure drains discharge condensate with less attention. Third, pick the element grade: 40 um is the standard element and 5 um (code W, fitted here) suits finer downstream needs. Then set the gauge scale (MPa, psi or bar) and the thread: PT is the catalogue standard, with G (BSPP) and NPT as order options; a bracket can be included or omitted (code J).
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, and the exact regulation range of the low-pressure type is not published on the sheet we transcribe from. Send us your line pressure, required downstream pressure and air demand, and we will confirm the datasheet figures against your application 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 family as curves, not as a single rated figure, so we do not quote a number here. Send us your line pressure, required downstream pressure and air consumption, and we will confirm the datasheet flow curve and the low-pressure regulator's range against your application before you order.
Manual drain means condensate collects in the metal bowl until an operator opens the drain valve, so it suits stations that are checked on a regular schedule. Within the GFR family you can instead order an automatic drain or the differential-pressure (default) drain if you want condensate handled with less manual attention.
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.