The AirTAC GFR300C10LJF2WK AirTAC Filter Regulator 3/8" Low-Pressure 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 GFR300C10LJF2WK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation in a single body with a PT3/8 (3/8 in) port. This configuration carries the finer 5 um filter element, a differential-pressure drain, and a low-pressure regulator type (L code) for circuits that hold a lower set pressure. An embedded square gauge with a psi scale is fitted, a reverse/check valve is built in, and the unit does not include a mounting bracket (J code). 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 GFR300 family sits in the G-series size range with ports from 1/8 to 1 in, and options across the line include manual or automatic drains, the 40 um standard element, alternative gauge scales (MPa, psi, bar), G (BSPP) or NPT threads, and bracket variants. 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 | GFR300C10LJF2WK AirTAC Filter Regulator 3/8" Low-Pressure |
|---|---|
| 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) |
Feeds filtered, regulated air to pneumatic clamps that hold cartons while they are glued or folded, with the psi-scale square gauge letting operators set and check the clamp pressure at a glance and the check valve holding the setting if upstream air dips.
Conditions the shop-air line feeding impact drivers, ratchets and die grinders at a repair station: the 5 um element keeps fine particles out of the tools while the regulator holds a steady, low working pressure for delicate fastening work.
Prepares the air driving pushers and diverters along a bottling line, removing condensed water and particulate before it reaches the cylinders, with the low-pressure regulator suiting actuators that need a gentler setting than the main header pressure.
Within the G-series the real, decodable choices are: size and port (1/8 to 1 in across sizes 200-600) matched to the air your line uses; drain type - differential-pressure (this model), automatic (A) or manual (M); filter grade - 40 um standard or 5 um (W), which this unit carries; gauge - an embedded square gauge as standard with MPa, psi or bar scales (this model reads psi), or an optional external round gauge; thread - PT standard, with G (BSPP) or NPT as order options; and bracket - included by default, omitted on this J-coded unit. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application 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, not as a single rated figure, so we do not quote a number here. Tell us your line pressure and the air your application consumes, and we will confirm the flow from the datasheet and check the sizing with you before you order.
The L code makes this a low-pressure regulator rather than the standard type, intended for circuits that hold a lower set pressure. The exact adjustment range for the low-pressure type is not published in the material we quote, so confirm the range with us against your set point before ordering. The embedded square gauge fitted to this unit reads in psi.
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.