The AirTAC GFR300C08JC2TK 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 GFR300C08JC2TK is an AirTAC GFR-series filter regulator: water and particulate filtration plus downstream pressure regulation combined in a single body. This 300-size unit is threaded NPT1/4 (1/4 in), carries the standard 40 um filter element, and uses the differential-pressure drain, which discharges collected condensate in response to the pressure differential across the element. The regulator adjusts 0.15-0.9 MPa (20-130 psi) with this drain configuration. A round pressure gauge scaled in psi is fitted, a reverse (check) valve is built in, and the unit is supplied without a mounting bracket. The polycarbonate bowl serves in the stated -5 to 70 C (non-freezing) range at a maximum inlet pressure of 1.0 MPa (145 psi).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options including 5 um (W) filtration, automatic or manual drains, square or round gauges scaled in MPa, psi or bar, G (BSPP) or NPT threads in place of the PT standard, and mounting brackets. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR300C08JC2TK 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) |
Feeding clean, regulated air to the sealing cylinders and diverters on a pouch or carton packaging line, with the 40 um element stripping water and pipe scale before they reach the actuators.
Supplying regulated air to pneumatic clamps and tool-change cylinders on a machining cell, where the check valve helps hold the set downstream pressure if the shop supply dips.
Conditioning supply air for pneumatic control valves and positioners on a process skid, keeping the actuator supply at a stable set pressure downstream of the plant air ring main.
Within GFR300 the real choices are: port step (1/4 in here, stepping up through 3/8, 1/2, 3/4 and 1 in as air demand grows), drain type (differential-pressure as fitted here, automatic, or manual - note the manual-drain variant widens the regulating range down to 0.05 MPa / 7 psi), filter grade (40 um standard, 5 um with code W for finer particulate), gauge style and scale, and thread (PT is the standard; G and NPT are order options - this unit is NPT). This configuration regulates 0.15-0.9 MPa (20-130 psi) and includes a reverse/check valve. Flow 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 GFR300 flow as curves rather than a single rated figure, so we do not quote a number here. Send us your required flow and working pressure and we will confirm against the datasheet whether the 1/4 in GFR300 suits your application before you order.
It means a reverse (check) valve is fitted. If the upstream supply fails, the valve helps hold the regulated downstream pressure instead of letting it bleed back through the filter body. Order a code without K if you do not want that behaviour.
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.