The AirTAC GFR300C10JC3WT AirTAC Filter Regulator NPT3/8, 5 um 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 GFR300C10JC3WT is an AirTAC GFR300 filter regulator: a single body that removes water and particulate from compressed air and holds downstream pressure steady. This unit is threaded NPT3/8 (3/8 in), carries a 5 um filter element, drains condensate by differential pressure, and is fitted with an external round gauge scaled in bar. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing). The bowl is metal and no mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options include a 40 um standard or 5 um element, automatic, manual or differential-pressure drains, embedded square or external round gauges with MPa, psi or bar scales, G (BSPP) or NPT threads in place of the PT standard, and optional brackets. Flow for the series is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet and sizing for your application before you order.
| Model | GFR300C10JC3WT AirTAC Filter Regulator NPT3/8, 5 um |
|---|---|
| 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) |
Supplying filtered, regulated air to the clamping cylinders on a CNC machining cell, where the 5 um element protects the fixtures and the bar-scaled gauge lets the setter verify clamp pressure.
Feeding the air cylinders and grippers on a packaging line, with the regulator holding downstream pressure steady so sealing and pick-and-place motions stay repeatable through the shift.
Conditioning shop air on a laboratory or QC test bench, where the 5 um grade and a stable regulated supply keep instruments and pneumatic fixtures free of water and debris.
Choose the size by port and air demand: this is size 300 with a 3/8 in NPT port; step up to 400 or 600 for larger demand, or down to 200 for compact lines. Drain options are differential-pressure (this unit, which bleeds condensate as pressure drops), automatic, or manual. The element here is the 5 um grade (code W); 40 um is the standard alternative. Gauge choices are the embedded square gauge or an external round gauge in MPa, psi or bar scales - this unit carries a round gauge in bar. Thread is NPT here; PT is the catalogue standard and G (BSPP) is also an order option. A mounting bracket is optional and this configuration omits one. Flow for the series is published as curves, not a single rating, so send us your air demand and we will confirm sizing against the datasheet 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 flow for the GFR series as curves rather than a single rated figure, so we do not quote a number here. Tell us your air demand and port size and we will confirm the flow from the datasheet for your application on request.
The 40 um element is the standard grade and suits general supply air; the 5 um element (code W) fitted here gives finer filtration for valves, cylinders and instruments that need cleaner air. The grade is chosen per application - ask us if you are unsure which one your line needs.
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.