The AirTAC GFR300C08AF1TK 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 GFR300C08AF1TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 unit has a 1/4 in NPT port, a 40 um filtration element, an automatic drain that discharges collected condensate without manual attention, and a polycarbonate (PC) bowl. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), an embedded square gauge scaled in MPa shows the set pressure, a reverse/check valve is fitted, and a mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi); operating temperature is -5 to 70 C, non-freezing.
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 is catalogued with manual or differential-pressure drains, a 5 um element (code W), psi or bar gauge scales, an external round gauge, G (BSPP) or NPT threads, and a no-bracket option. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR300C08AF1TK 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 tool-clamp and chip-clearing cylinders on a machining centre, where one body filters moisture and particulate from the shop air and holds a steady regulated pressure to the clamps.
Supplying filtered, regulated air to sealing jaws and product-push cylinders on a packaging conveyor, with the automatic drain handling condensate through multi-shift runs.
Conditioning air ahead of pick-and-place grippers and screwdriver feeders in an assembly cell; this configuration adds a reverse/check valve to the combined filter-regulator function.
Choose the size and port against the air consumption of the downstream circuit: this unit is size 300 with a 1/4 in NPT port, one step in the 200-600 range that runs up to 1 in ports. Drain type is a real operating choice: the automatic drain fitted here discharges condensate on its own, while manual (M) and differential-pressure (blank) drains suit attended or line-pressure-driven setups. The 40 um element is the standard grade; specify code W for 5 um where finer particulate removal matters. Gauge scale (MPa here; psi or bar optional), PT vs G/NPT thread, and the bracket can all be selected at order time.
Because AirTAC publishes flow for this series as curves rather than a single rated number, we do not quote a flow figure here. Send us your application's air demand 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, not as a single rated figure, so we do not quote a number here. Tell us your application's air demand and we will confirm the flow curve and sizing from the datasheet on request before you order.
This unit carries code A, the automatic drain, which handles condensate discharge without daily attention. The GFR300 is also catalogued with a manual drain (M) and a differential-pressure drain (blank), and the element can be ordered as 5 um (code W) instead of the standard 40 um.
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.