The AirTAC GFR300C08F2TK AirTAC Filter Regulator 1/4 NPT 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 GFR300C08F2TK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This 300-size unit is threaded 1/4 in NPT, carries the standard 40 um filter element, and drains condensate by differential pressure. The standard regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -5 to 70 C (non-freezing). This configuration is supplied with an embedded square gauge reading in psi, a reverse/check valve, and a mounting bracket; the bowl on size 300 is polycarbonate.
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 manual or automatic drains, a finer 5 um element (code W), gauge scales in MPa, psi or bar, an external round gauge, and G (BSPP) or NPT threads alongside the PT standard. Flow for this model is published as a curve rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR300C08F2TK AirTAC Filter Regulator 1/4 NPT 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) |
Filtering and regulating the air that actuates tool clamps and chip-clearing cylinders on a CNC machining center, keeping moisture and swarf out of the valve stack while holding a set pressure.
Supplying clean, regulated air to the stopper and pusher cylinders that index bottles along a filling-line conveyor, with the 40 um element protecting the directional valves.
Regulating air to the pneumatic grippers on a robotic weld-cell end effector, with the fitted check valve holding downstream pressure through brief supply dips.
Pick the size by port and demand: 200 for 1/8-1/4 in ports, 300 for 3/8-1/2 in, 400 for 3/4 in, 600 for 1 in - step up a size when the line needs more air. On drains, this unit uses the differential-pressure default; automatic (A) and manual (M) are the alternatives. The element here is the standard 40 um, with 5 um (W) for finer filtration. The square gauge on this code reads psi; MPa and bar scales are available and an external round gauge is optional. Thread is NPT on this model; PT is the AirTAC standard and G (BSPP) is also offered. 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 flow for the GFR300 as a curve 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 the datasheet figures and check the sizing for your line before you order.
This unit drains condensate when the pressure differential across the bowl reaches its trigger point, with no operator action needed under steady demand. If your compressor cycles often or the unit sits at low flow, the automatic-drain (A) version is the better choice; use manual (M) where an operator drains on a schedule. The 40 um element fitted here is standard - specify code W if you need 5 um filtration.
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.