The AirTAC GFR300C10AJC2T AirTAC Filter Regulator NPT3/8 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 GFR300C10AJC2T is an AirTAC GFR-series filter regulator: water and particulate filtration plus downstream pressure regulation combined in a single 300-size body with a 3/8 in NPT port. This configuration carries a 40 um filter element, an automatic drain that ejects collected condensate without manual attention, and a round pressure gauge reading in psi. The standard regulator adjusts outlet pressure across 0.15-0.9 MPa (20-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi), and the unit operates from -5 to 70 C in non-freezing conditions. The 300-size polycarbonate bowl gives a clear view of condensate level, and the J suffix means the unit is supplied without a mounting bracket.
This is a genuine AirTAC part from the GFR300 series, one of four GFR sizes (300/400/600) covering ports from 1/4 in to 1 in. Related options across the series include manual or differential-pressure drains, a 5 um element (code W), square embedded or round external gauges with MPa, psi or bar scales, and G (BSPP), NPT or PT threads. 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 | GFR300C10AJC2T AirTAC Filter Regulator NPT3/8 |
|---|---|
| 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 feeding the tool-change clamps and air-blast nozzles on a CNC mill: the 40 um element strips water and chips-laden particulate before the regulator holds a steady set pressure for repeatable clamping.
Supplying the pneumatic control valves on a carton-forming and sealing line, where the automatic drain keeps condensate out of the valve bank during continuous shifts and the psi gauge lets operators verify set pressure at a glance.
Conditioning the air feeding gripper cylinders and vacuum ejectors on a robotic assembly cell, with the regulator holding a fixed downstream pressure so grip force stays consistent part after part.
Choose the GFR size by port and expected air demand: this 300-size unit takes a 3/8 in NPT port, and stepping up to 400 or 600 gives larger ports and higher flow capacity. If your line cannot tolerate manual drain rounds, the automatic drain fitted here is the right choice; manual and differential-pressure drains are available on other codes. The 40 um element suits general plant air; specify the W variant for 5 um filtration where downstream valves or instruments need cleaner air. Gauge scale is selectable (this code reads psi; MPa and bar scales exist), and threads come as PT standard with G and NPT as order options. Flow is published as curves, not a single rating, so send us your application parameters and we will confirm sizing from 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 GFR300 series as curves rather than a single rated figure, so we do not quote a rated l/min or SCFM number. Tell us your operating pressure and air demand and we will confirm the flow figures from the datasheet for this exact unit before you order.
The A in the code specifies an automatic drain, which ejects collected condensate from the bowl without operator attention - useful on lines that run unattended. Other GFR300 codes offer a manual drain (code M) or the differential-pressure drain (blank), which is the default. The 40 um element in this code is the standard grade; a 5 um element is available as code W.
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.