The AirTAC GFR300C10MF1WT AirTAC Filter Regulator 3/8 in NPT 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 GFR300C10MF1WT is a 300-size filter regulator: it removes water and particulate from compressed air and sets downstream pressure in a single body. This configuration has 3/8 in NPT ports, a 5 um filter element (code W), a manual drain, an embedded square gauge scaled in MPa, and a standard regulator with an adjustment range of 0.05-0.9 MPa (7-130 psi). The bowl on this unit is metal, a mounting bracket is included, and no reverse/check valve is fitted. 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 is available in sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, G (BSPP) or NPT threads as order options alongside the PT standard, drain choices, 40 um or 5 um filtration, gauge and scale choices, and low-pressure variants. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C10MF1WT AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| 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. |
|---|---|
| C1 | 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-C1 (two-unit set) |
Clean, regulated air for the clamping cylinders and tool-change actuators on a CNC machining centre, with the 5 um element protecting the machine's directional valves from particulate carryover.
Point-of-use pressure setting for carton-sealing and case-erector cylinders on a packaging conveyor, where the manual drain suits a line that is blown down at shift end.
A filtered and regulated air drop feeding assembly-bench air tools and small actuators, with the square MPa gauge giving operators a local pressure reference at the station.
Start with the port step: GFR300 with 3/8 in NPT ports suits lines running above the 1/4 in class; step up to GFR400/GFR600 or down to GFR200 as your piping and air demand dictate. Choose the drain to match access: manual drain (this unit) needs periodic draining by an operator, while automatic and differential-pressure drains discharge condensate without manual attention. Choose the filter grade for the valves and cylinders downstream: 40 um is the standard element and 5 um (this unit, code W) suits finer instrumentation and air tools that need cleaner air. The embedded square gauge is standard, with an external round gauge optional and MPa, psi or bar scales to order. Thread is PT as standard, with G (BSPP) and NPT (this unit) as catalogue options; a bracket is included on this configuration.
Because flow is published as curves and not as a single rated number, we do not quote a rated flow figure here. Send us your application details and we will confirm the sizing against the datasheet curves 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 series as curves rather than a single rated figure, so we do not state a rated flow number here. Send us your application details and we will confirm the datasheet flow curves and sizing for this 3/8 in NPT unit on request.
The M in the code specifies a manual drain: condensate collected in the metal bowl is released by operating the drain by hand, so the unit needs periodic attention. If your installation is unattended or sees heavy condensate loading, ask us about the automatic or differential-pressure drain variants of the GFR300 instead.
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.