The AirTAC GFR300C08JC2G AirTAC Filter Regulator G1/4, 40 um 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 GFR300C08JC2G is a size 300 filter regulator: it removes water and particulate from compressed air down to 40 um and regulates downstream pressure in one body. This configuration has a G1/4 (BSPP) port, a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough, a standard regulator with a 0.15-0.9 MPa (20-130 psi) adjustment range, and a round pressure gauge reading in psi. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). The size 300 bowl is polycarbonate (PC); only size 600 units use an aluminium alloy bowl. No mounting bracket is included with this code and no reverse/check valve is fitted.
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 inch, and can be ordered with automatic or manual drains, a 5 um filter element (code W), embedded square or external round gauges in MPa, psi or bar scales, PT, G or NPT threads, a reverse/check valve, and with or without a bracket. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR300C08JC2G AirTAC Filter Regulator G1/4, 40 um |
|---|---|
| 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 supply for a CNC machining cell: clean, moisture-reduced air at a set pressure feeding pneumatic tool clamps and tool-change cylinders, with the round psi gauge letting operators verify set pressure at a glance.
Conditioning the air feeding the divert and pusher cylinders on a carton packaging and sorting conveyor, where the 40 um element protects valve spools from particulate and the regulator holds a stable pressure for consistent stroke speed.
Filtering and regulating the air supply to spray guns and air-assist equipment in a paint booth, removing water carryover that would blister finishes and holding the gun supply pressure steady across a shift.
Choose the size and port step (200 through 600, 1/8 to 1 inch) against the air consumption of the machine being supplied - larger sizes carry larger ports and more flow capacity. For drain, this unit uses the differential-pressure type; automatic drain (code A) suits unattended installations and manual drain (code M) suits periodic-service points. The standard element is 40 um; specify 5 um (code W) where finer particulate protection is needed. Gauges can be the embedded square type or an external round gauge, in MPa, psi or bar scales - this code carries a round psi gauge. Thread is PT as standard, with G (BSPP) and NPT available as order options, and a bracket can be added if panel or wall mounting is required. Flow for these units is published as curves, not a single rating, so send us your flow and pressure requirements and we will confirm 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 the GFR series as curves rather than a single rated figure, so we do not quote one number. Tell us your working pressure and air consumption and we will confirm the flow from the datasheet for this exact model on request.
This code carries the differential-pressure drain as the default: condensate is discharged automatically when the pressure differential across the filter element rises, with no operator action. If you prefer a fully automatic float drain for unattended plants or a manual drain for periodically serviced points, the same size 300 unit can be ordered with drain code A or M.
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.