The AirTAC GFR300C10JF2WTK AirTAC Filter Regulator NPT 3/8 in 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 GFR300C10JF2WTK is a GFR-series filter regulator: one body removes water and particulate from compressed air and holds downstream pressure steady. This size-300 unit has a 3/8 in NPT port, a polycarbonate (PC) bowl with differential-pressure drain, the W 5 um filter element (finer than the standard 40 um grade), the embedded square gauge reading in psi, and a fitted reverse/check valve (K); no mounting bracket is included (J). 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 is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, MPa, psi or bar gauge scales, and PT, G or NPT threads. Because AirTAC publishes flow only as curves rather than a single rating, we confirm the flow and datasheet figures for your application on request.
| Model | GFR300C10JF2WTK AirTAC Filter Regulator NPT 3/8 in |
|---|---|
| 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-change and clamping circuits of a CNC machining centre, where the 5 um element helps protect precision valves from water and particulate and the regulator holds a steady setting at the machine.
Supplying clean, regulated air to the pneumatic cylinders and diverters on a packaging or bottling line, with the fitted check valve preventing backflow through the unit if upstream supply pressure drops.
Serving bench-mounted air drops on an assembly line, where operators need one point that both cleans the air for tools and fixtures and lets each station set its own working pressure on the psi gauge.
Size and port step up together: 200, 300, 400 and 600 cover 1/8 in through 1 in, so pick the size whose flow curve covers your demand - we can check the curve against your application before you order. This unit is already set for 5 um filtration (40 um is the standard grade where finer filtration is not needed), a differential-pressure drain (automatic and manual are order options), a square gauge reading psi (MPa or bar scales, and an external round gauge, are available), and a reverse/check valve. The thread here is NPT; PT is the standard and G is also an order option. No mounting bracket is fitted, so plan your mounting accordingly.
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 curves rather than a single rated figure, so we do not quote a flow number here. Tell us your application and we will confirm the flow from the datasheet on request before you order.
The code W sets the 5 um element instead of the standard 40 um grade. Choose 5 um where downstream equipment needs finer filtration of water and particulate; the 40 um grade remains available as the standard option in the same size.
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.