The AirTAC GFR300C08MJC2TK 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 GFR300C08MJC2TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 unit carries a 1/4 in NPT port, a 40 um filter element, a manual drain bowl, a round pressure gauge reading in psi, and a built-in reverse (check) valve that holds downstream pressure if the supply drops. The standard regulator covers an adjustment range of 0.05-0.9 MPa (7-130 psi), and maximum inlet pressure is 1.0 MPa (145 psi). Operating temperature is -5 to 70 C (non-freezing), and this configuration ships without a mounting bracket.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and can be ordered with automatic, manual or differential-pressure drains, a 5 um element (code W), square or round gauges with MPa, psi or bar scales, PT, G or NPT threads, and with or without a bracket. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C08MJC2TK 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 filtration and regulation for the cylinder and valve stack on a carton-forming packaging line, with the psi gauge giving operators a local setpoint readout and the check valve holding pressure through brief supply dips.
Clean, regulated air for the pop-up diverters and stopper cylinders on a distribution-centre sorting conveyor, fed from a 1/4 in NPT drop with manual drain-off of accumulated condensate at shift checks.
Supplying the pneumatic grippers and lift stages of a benchtop laboratory automation cell, where the 40 um element protects fine valves and the regulator holds a stable low-pressure circuit for delicate handling.
Start with the port and size: this unit is the size 300 body with a 1/4 in NPT port; step up or down through sizes 200-600 as your flow demand changes, and match the thread to your piping (PT is the standard, with G and NPT as order options). Choose the drain to suit access: manual drain (as fitted here) needs someone to open the bowl, automatic drain handles condensate unattended, and differential-pressure drain is the catalogue default. Filter grade is 40 um standard; specify code W for 5 um where finer particulate removal matters. Gauge scale is selectable (MPa, psi or bar) and the round external gauge on this unit reads psi; a square embedded gauge is the standard alternative. A bracket can be added if you want panel fixing - this configuration omits it, and the K code adds the reverse/check valve shown here.
Because AirTAC publishes flow as curves rather than a single rated figure, send us your flow and pressure requirements and we will confirm the 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 this series as curves rather than a single rated figure, so there is no one rated flow number we can honestly quote. Tell us your required flow and working pressure and we will confirm the sizing from the datasheet on request before you order.
The M in the code specifies a manual drain: someone opens the bowl drain to expel collected condensate, which suits points that are checked routinely. If the installation is unattended or hard to reach, the same GFR300 body can be ordered with an automatic drain (code A) or the differential-pressure drain that is the catalogue default.
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.