The AirTAC GFR300C08MF2WTK AirTAC Filter Regulator NPT1/4 5um 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 GFR300C08MF2WTK is a 300-size filter regulator that removes water and particulate from compressed air and holds outlet pressure at your setpoint in one body. This configuration carries a 1/4 in NPT port, a fine 5 um filter element, a manual drain for the polycarbonate (PC) bowl, an embedded square gauge reading in psi, a reverse/check valve, and a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator covers 0.05-0.9 MPa (7-130 psi), and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the GFR filter-regulator line, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in. Across the range you can order manual, automatic or differential-pressure drains, 40 um or 5 um elements, psi/MPa/bar gauge scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR300C08MF2WTK AirTAC Filter Regulator NPT1/4 5um |
|---|---|
| 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 conditioning at assembly stations: the 5 um element strips water and grit before it reaches air tools and torque-controlled drivers, while the regulator holds a steady, repeatable line pressure and the check valve holds the setpoint if supply dips.
Feeding pneumatic cylinders and vacuum-assist sealers on a packaging conveyor: clean, moisture-reduced air at a fixed psi setting keeps jaw cylinders cycling consistently through the shift, with the manual drain bled at scheduled clean-downs.
Supplying pneumatic fixtures, actuators and pilot lines on an R&D or QC test bench: the 5 um grade guards sensitive valves and instruments, and the psi square gauge lets technicians set and verify test pressure at the bench.
Start with the port and size: this unit steps up to the 300 frame with a 1/4 in NPT connection, so match it against the air demand of the circuit - larger sizes carry larger ports and more flow capacity. Because flow is published as curves and not a single rated figure, ask us to confirm sizing against your application before ordering. Then choose the drain: manual (as fitted here) suits points where an operator can bleed the bowl on a routine; automatic drains unattended drops; differential-pressure is the catalogue default. Filter grade is your next call - 40 um is the standard element and 5 um (this unit, code W) protects finer downstream equipment. The gauge is the embedded square type with a psi scale here; MPa or bar scales and an external round gauge are options. Thread is NPT on this code, with PT (standard) and G available to order, and the mounting bracket is included.
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. Send us your application details and we will confirm the datasheet flow curve and sizing for this 300-size, 1/4 in unit on request.
The M in the code specifies a manual drain: condensate collected in the bowl is released when an operator opens it, which suits stations visited daily. If the drop point is unattended, order the A (automatic) variant instead; the catalogue default is differential-pressure drain. Note that with a manual drain the regulation range is 0.05-0.9 MPa (7-130 psi).
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.