The AirTAC GFR300C10JF2GK AirTAC Filter Regulator G3/8 (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 GFR300C10JF2GK is a 300-size filter regulator that cleans compressed air and sets downstream pressure in a single body. Water and particulate are removed by the 40 um filter element, while the regulator holds your set pressure between 0.15 and 0.9 MPa (20-130 psi). This configuration has a G3/8 (3/8 in) female port with G (BSPP) thread, a differential-pressure drain that bleeds collected condensate automatically whenever the pressure drop across the element is high enough, an embedded square gauge read in psi, and a built-in reverse (check) valve that keeps the downstream setting in place if the upstream supply is lost. No mounting bracket is included with this version. 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 is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and with choices of thread (PT standard, G or NPT to order), drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um with code W) and gauge scale (MPa, psi or bar). Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet flow figures for this exact model against your application.
| Model | GFR300C10JF2GK AirTAC Filter Regulator G3/8 (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 the pick-and-place and clamp cylinders on a carton packaging line: the 40 um element keeps sealing wear down and the regulator holds a steady setting so case-erector strokes stay repeatable, with the check valve holding the setting through brief supply dips.
Point-of-use preparation for the air actuated tool changers, clamps and coolant gates on a CNC machining centre, where a stable regulated pressure and cleaned air protect the machine's own valves at the 3/8 in supply take-off.
A wall-mounted drop at an assembly bench powering air tools and small actuators: the square psi gauge lets operators verify the set pressure at a glance, and the differential-pressure drain handles condensate without daily manual draining.
Size and port set the flow capacity: this unit is a 300 with a G3/8 (3/8 in) port, one step up from the 200/1/4 in class, so choose it when your line demand sits above what a 1/4 in unit can carry. The 40 um element is the standard grade for general plant air; if you need finer protection for delicate valves or instruments, the 5 um (W) version of the same size is available. The differential-pressure drain is hands-off for continuously running lines; an automatic (A) or manual (M) drain can be ordered instead if your duty cycle or maintenance routine suits it better. The fitted square gauge reads in psi; MPa or bar scales and an external round gauge are alternatives. Thread here is G (BSPP); PT is the catalogue standard and NPT can be ordered. This version has no mounting bracket - the bracketed version is available if you want panel or wall fixing. Because flow is published as curves rather than a single rating, send us your application details 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 GFR series as curves rather than a single rated figure, so there is no one rated flow number we can honestly quote. Send us your line pressure, set pressure and expected air demand, and we will confirm the flow figures from the datasheet for this exact 300-size, 3/8 in model against your application before you order.
K means a reverse (check) valve is fitted. If the upstream supply drops or is shut off, the valve holds the regulated downstream pressure and setting instead of letting it bleed back through the unit. It is a useful choice on circuits where a momentary supply loss must not release a clamped or positioned load. Versions without the check valve are available if you do not need this.
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.