The AirTAC GFR300C10MLJC2TK AirTAC Filter Regulator NPT3/8 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.
GFR300C10MLJC2TK is an AirTAC GFR-series filter regulator: one body that removes water and particulate from compressed air and regulates the pressure downstream. This configuration is size 300 with a 3/8 in NPT port, a metal bowl with manual drain, the standard 40 um filter element, and the low-pressure regulator type. It carries a round external gauge reading in psi and a reverse/check valve, and no mounting bracket is fitted. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is made in sizes 200, 300, 400 and 600, with PT, G (BSPP) or NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um (W) filter grades, embedded square or external round gauges with MPa, psi or bar scales, and standard or low-pressure regulator types. Flow for the series is published as curves rather than a single rated figure, so we confirm flow and other datasheet figures on request.
| Model | GFR300C10MLJC2TK AirTAC Filter Regulator NPT3/8 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) |
Conditioning and regulating the air feeding sealing bars and low-pressure actuation circuits on a packaging line, with the psi gauge giving operators a local pressure reading at the machine.
Supplying filtered, regulated air to clamps and swing cylinders on an assembly fixture that works at reduced pressure, where the reverse/check valve is part of the specified circuit.
Delivering clean, pressure-controlled air to spray guns and coating equipment in a finishing booth, with the 40 um element handling water and particulate removal ahead of regulation.
The decodable choices in this series are the size and port (200/300/400/600, 1/8 in to 1 in) stepped against the flow your line needs; the drain type (differential-pressure as standard, automatic, or manual as here); the filter grade (40 um standard, 5 um with W); the gauge (embedded square as standard, external round optional, scaled in MPa, psi or bar); the thread (PT standard, G or NPT to order); and the bracket. This unit is the low-pressure regulator type, so confirm its adjustment range against your set pressure before ordering. Because AirTAC publishes flow as curves rather than a single rating, ask us to check the 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 GFR series as curves, not as a single rated number, so we do not quote a figure here. Tell us your application and we will confirm the flow and full datasheet figures for this unit on request before you order.
The L code makes this a low-pressure regulator type rather than the standard GFR300. Its exact adjustment range is not published in our material, so we confirm it on request. What the code does fix: 3/8 in NPT port, manual drain, 40 um element, round gauge reading in psi, reverse/check valve fitted, no bracket, max inlet 1.0 MPa (145 psi), and -5 to 70 C operation.
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.