The AirTAC GFR300C10MLJC2G AirTAC Filter Regulator G3/8 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 AirTAC GFR300C10MLJC2G is a GFR300-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built around G3/8 ports with G (BSPP) thread, a 40 um standard filtration element, and a manual drain bowl in metal, so an operator empties collected condensate by hand as part of routine checks. The regulator is the low-pressure type, fitted with an external round gauge scaled in psi for direct setpoint reading. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). No mounting bracket is included and no reverse/check valve is fitted.
This is a genuine AirTAC part from the G-series air-treatment range, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and options including automatic or manual drains, a 5 um (code W) element, different gauge scales, and PT, G or NPT threads to order. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR300C10MLJC2G AirTAC Filter Regulator G3/8 |
|---|---|
| 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) |
Filtered, regulated air feeding clamp cylinders and swing clamps on a CNC machining fixture, where the low-pressure regulator holds a gentle, repeatable clamp force and the 40 um element keeps debris out of the valve stack.
Supplying atomising air to spray guns in a paint or coating line, where the low-pressure regulator type is used to hold a modest, stable setpoint and the manual-drain bowl is emptied during end-of-shift housekeeping.
Point-of-use treatment ahead of air cylinders that kick boxes between conveyor lanes on a carton-packing line, with the round psi gauge letting line staff verify supply pressure at a glance.
Choose the size and port step against the air consumption of the circuit downstream: this unit is size 300 with G3/8 ports, and the G-series steps up through sizes 400 and 600 where larger ports and higher flow are needed. Drain type is a real decision: this version is manual drain, which suits attended installations; automatic and differential-pressure drain versions exist where the bowl should empty itself. Filtration grade is 40 um as decoded here, with a 5 um element (code W) available where finer protection is required. The gauge on this unit is round and scaled in psi; embedded square gauges and MPa or bar scales are the alternatives. Thread is G (BSPP) on this code, with PT as the standard and G or NPT as order options, and brackets are optional (this configuration has none). Because flow for the G-series is published as curves and not a single rating, send us your application details 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 G-series as curves, not as a single rated figure, so we do not quote a rated SCFM, l/min, Cv or effective-area number. Send us your application details and we will confirm the datasheet and check the sizing of this G3/8 filter regulator against your required flow before you order.
This code carries a manual drain: condensate collected in the metal bowl is released by operating the drain by hand, so the bowl should be checked as part of routine maintenance. If you would rather the bowl empty itself, the GFR300 is also available with automatic or differential-pressure drain - tell us which you prefer and we will confirm the corresponding model.
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.