The AirTAC GFR300C08AJF1TK 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 GFR300C08AJF1TK is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has a 1/4 in NPT port, an automatic drain on the polycarbonate bowl, a 40 um filter element, an embedded square pressure gauge scaled in MPa, a reverse/check valve fitted, and no mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi). Working temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is published in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, and with choices of drain type, 40 um or 5 um filtration, gauge style and scale, thread (PT standard; G and NPT to order) and bracket. Flow is published as curves rather than a single rating, so ask us to confirm the figures for your application before ordering.
| Model | GFR300C08AJF1TK 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 water and particle removal plus regulated pressure for a CNC machine's pneumatic clamps and tool-change circuits, fed from a 1/4 in drop leg.
Clean, regulated air for pick-and-place cylinders and sealing jaws on a packaging conveyor line, with the automatic drain handling condensate from humid plant air.
Regulated, filtered air to weld-gun clamp cylinders and tool-changing circuits in a robotic welding cell, with the square MPa gauge giving a clear local setting reference.
Size the unit by port and required flow: this is a 300-size body with a 1/4 in NPT port, and larger sizes (400, 600) carry larger ports and more flow. Because AirTAC publishes flow as curves rather than a single rated figure, send us your flow requirement and we will confirm the right size from the datasheet before you order. The drain here is automatic (code A); manual (M) and differential-pressure (blank) versions exist, and the regulation range differs by drain: 0.15-0.9 MPa (20-130 psi) with automatic or differential drain, 0.05-0.9 MPa (7-130 psi) with manual drain.
The 40 um element is the standard grade; specify W for the 5 um option if finer filtration is needed. The square gauge fitted here reads in MPa; an external round gauge and psi or bar scales are the alternatives. NPT is the thread on this code, PT is the catalogue standard and G (BSPP) is also available. Code J means no mounting bracket is supplied; choose a bracket version if you need one for mounting.
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 no flow number is quoted here. This unit is a 300-size body with a 1/4 in NPT port. Send us your required flow and application details and we will confirm the figures from the datasheet before you order.
Code A in GFR300C08AJF1TK means the bowl drains collected condensate automatically. Manual (M) and differential-pressure (blank) drains are catalogue options. Note the regulator range is 0.15-0.9 MPa (20-130 psi) with automatic or differential drain and 0.05-0.9 MPa (7-130 psi) with manual drain. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
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.