The AirTAC GFR300C08LC3TK 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 GFR series combines filtration and pressure regulation in a single body: air passes through a drain bowl that removes water and particulate, then through a regulating valve that sets the downstream pressure. This GFR300C08LC3TK is the size-300 unit with 1/4 in NPT ports, the standard 40 um filter element and the default differential-pressure drain. It is the low-pressure regulator type, and it comes fitted with a round pressure gauge reading in bar, a reverse/check valve and a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and the decodable options include a 5 um filter element (code W), automatic or manual drains, gauge scales in MPa, psi or bar, G (BSPP) or NPT threads in place of the PT standard, and bracket variations. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm sizing and any datasheet figure for your application before ordering.
| Model | GFR300C08LC3TK 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) |
Conditioning the air feeding gripper, pusher and stopper cylinders on a bottling conveyor, where filtered and regulated air keeps bottle handling consistent through long production runs.
Supplying filtered, regulated air to pneumatic clamps and vise actuators on a CNC machining cell, keeping water and airborne swarf out of the clamping valves and cylinders.
As the low-pressure type, suiting spray-gun and finishing-booth circuits where the regulator is set toward the lower end of the range - confirm your set point with us against the datasheet before ordering.
Choose the size by port and required flow: this unit is size 300 with 1/4 in NPT ports; larger sizes (400, 600) carry bigger ports and more flow, but flow is published as curves rather than a single rating, so send us your demand and we will confirm the right size against the datasheet. The other real choices in this code: drain type (this unit uses the default differential-pressure drain; automatic and manual are order options), filter grade (40 um standard here, 5 um with code W), gauge scale (this unit reads bar; MPa and psi scales are available), thread (PT is the AirTAC standard and G/NPT are order options - this unit is ordered in NPT), and bracket (included here; code J deletes it).
One point to settle before ordering: this is the low-pressure regulator type, and the exact setting range for that version is not published in our data. Tell us the set pressure your circuit needs and we will confirm it against the datasheet before you commit.
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 a number here. Send us your line pressure, set pressure and air demand, and we will confirm the flow and sizing from the datasheet before you order.
In this code the L sets the regulator to the low-pressure type instead of the standard version. The exact setting range for the low-pressure type is not published in our data, so confirm your required set pressure with us and we will check it against the datasheet. Everything else decodes normally: 1/4 in NPT ports, 40 um element, differential-pressure drain, round bar-scale gauge, reverse/check valve and mounting bracket.
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.