The AirTAC GFR300C08MC2G AirTAC Filter Regulator G1/4 Manual Drain 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 GFR300C08MC2G is a GFR-series filter regulator: filtration and pressure regulation combined in a single body. It removes water and particulate from compressed air through a 40 um element, then regulates downstream pressure with a standard-type regulator adjustable from 0.05 to 0.9 MPa (7 to 130 psi). This configuration is sized 300 with a G1/4 (BSPP) port, uses a manual drain so collected condensate is released by hand, and carries a fitted round gauge scaled in psi so the set pressure can be read directly. A mounting bracket is included and the maximum inlet pressure is 1.0 MPa (145 psi).
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with a choice of port sizes, G/NPT thread options in addition to the PT standard, manual, automatic or differential-pressure drains, and a 5 um (code W) filter element where finer filtration is needed. Flow figures for this family are published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR300C08MC2G AirTAC Filter Regulator G1/4 Manual Drain |
|---|---|
| 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) |
Clean, regulated air feeding the pneumatic tool changers, clamps and purge lines on a machining centre, with the psi gauge letting setters verify set pressure at the machine.
Conditioning the air that drives conveyor stoppers, pushers and diverters on a packaging line, where the 40 um element protects cylinders from water and debris and the manual drain is emptied during shift checks.
Supplying filtered, regulated air to gripper and vacuum-generator circuits on a robot cell, with the included bracket mounting the unit on the cell panel beside the valve manifold.
Choose the size and port step against the air demand of the circuit: this unit is size 300 with a G1/4 port, and the family steps through 200, 300, 400 and 600 as port size and flow capacity rise. This configuration has a manual drain, which suits points of use that are checked regularly; choose an automatic or differential-pressure drain code if the bowl cannot be drained by hand. The 40 um element fitted here is the standard grade; specify code W for 5 um where finer filtration is required. The fitted round gauge reads in psi; square embedded gauges and MPa or bar scales are the alternative gauge choices. PT is the standard thread and G or NPT are order options - this unit is the G version. Flow for this family is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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 rather than a single rated figure, so we do not quote a l/min or SCFM number. Tell us your application and we will confirm the datasheet flow figures for this size 300, G1/4 unit on request.
This configuration uses a manual drain: condensate collected in the bowl is released by hand, which suits points of use that are inspected regularly. The GFR family also offers an automatic drain (code A) and a differential-pressure drain (blank) where the bowl cannot be drained manually.
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.