The AirTAC GFR300C10F3WT 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 GFR300C10F3WT is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your setpoint in one compact body. This size 300 unit carries a 3/8 in NPT port, the W-code 5 um filter element, the standard differential-pressure drain, an embedded square gauge reading in bar, a standard (not low-pressure) regulator, and a mounting bracket. The bowl on this size is polycarbonate (PC).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, drain choices (differential-pressure, automatic or manual), 40 um standard or 5 um filtration, and MPa, psi or bar gauge scales. Maximum inlet pressure is 1.0 MPa (145 psi), working temperature is -5 to 70 C (non-freezing), and the regulator on this differential-drain version adjusts from 0.15 to 0.9 MPa (20-130 psi). Flow is published as curves rather than a single rating, so ask us to confirm figures against your application.
| Model | GFR300C10F3WT 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) |
Filtered, regulated air to the pneumatic clamps on a machining centre fixture, holding a steady clamp pressure so the workpiece stays seated through the cutting cycle.
Supplying divert and stop cylinders on a packaging conveyor, with the 5 um element protecting the directional valves from water carryover and fine debris.
Regulated air for small pneumatic actuators on laboratory sampling and dispensing skids, where the bar-scale gauge gives a clear local setpoint reading at the skid.
Size and port set the air capacity: step from 200 to 300 to 400 or 600 as your port and flow demand grow; this unit is size 300 with a 3/8 in NPT port. Choose the drain: differential-pressure (standard, as fitted here), automatic (A) for unattended condensate removal, or manual (M) for controlled bleeding - note the regulation range differs, 0.15-0.9 MPa (20-130 psi) with differential or automatic drain versus 0.05-0.9 MPa (7-130 psi) with manual. Pick the element: 40 um standard or 5 um (W, this unit) for finer protection. Gauge scale is MPa, psi or bar (bar here, on the embedded square gauge; an external round gauge is optional). Thread is PT as standard with G (BSPP) and NPT as order options - this unit is NPT. A bracket is included. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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 GFR flow as curves rather than a single rated figure, so we do not quote one number. Tell us your application and we will confirm the flow and sizing from the datasheet on request.
This unit carries the W-code 5 um element for finer protection of downstream valves and cylinders. The 40 um element is the standard choice where only bulk water and coarse particles are the concern; both share the same GFR300 body and 3/8 in NPT port.
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.