The AirTAC GFR300C10C2WTK 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 GFR300C10C2WTK 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 a 3/8 in NPT port, a 5 um filter element (the finer of the two catalogue grades), a differential-pressure drain that bleeds collected condensate automatically as pressure drop builds, a round external gauge reading in psi, a built-in reverse/check valve that holds the downstream setting when inlet pressure is lost, and a mounting bracket included. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi) and an operating temperature of -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, a choice of 40 um or 5 um filtration, differential-pressure, automatic or manual drains, and PT, G or NPT threads. Flow figures for the series are published as curves rather than a single rating, so ask us to confirm the datasheet numbers for your application before ordering.
| Model | GFR300C10C2WTK 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) |
Feeding filtered, regulated air to the tool-clamp and pallet-change circuits of a CNC machining centre, where the 5 um element protects clamping valves from particulate and the check valve holds clamp pressure if the shop supply drops.
Supplying the divert gates, seal jaws and vacuum-assist cylinders on a carton packaging line, with the regulator set to the pressure the machine builder specifies and the differential-pressure drain keeping condensate out of the valve bank.
Conditioning the air feeding lab automation actuators and sample-handling grippers, where the 5 um grade and a stable, gauge-monitored setting keep sensitive motion components working consistently through the shift.
Size and port set the flow path: this unit is a 300 with a 3/8 in NPT port, one step up from the 200/1/4 in class, so choose it when your line needs more air than a quarter-inch circuit supplies. The 5 um element (code W) suits downstream components that tolerate less particulate than the 40 um standard element; the differential-pressure drain needs no daily attention, while automatic and manual drains remain catalogue options on other variants. The round psi gauge suits US practice; square embedded gauges and MPa or bar scales are also available. PT is the standard thread and G or NPT are ordered as options - this unit is specified with NPT. A bracket is included.
Flow for the GFR series is published as curves, not a single rated figure, so we cannot quote a rated number here. Send us your application's 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 GFR series as curves rather than a single rated figure, so we do not quote a rated number on the page. Send us your required flow and working pressure and we will confirm the datasheet figures for this 300-size, 3/8 in NPT unit against your application before you order.
The W in the code specifies the 5 um filtration grade, the finer of the two catalogue options, chosen when downstream valves and actuators need cleaner air than the 40 um standard element provides. The K in the code adds a reverse/check valve, which holds the regulated downstream pressure if the upstream supply is interrupted. Drain on this unit is differential-pressure, gauge is the external round type reading in psi, and the thread is NPT.
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.