The AirTAC GFR300C08MLJC2TK AirTAC Filter Regulator NPT1/4 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 GFR300C08MLJC2TK is an AirTAC GFR-series filter regulator: one body that removes water and particulate from compressed air and then regulates the pressure delivered downstream. This size 300 unit is threaded NPT1/4 (1/4 in), carries the 40 um standard filter element, and drains by hand through its manual drain - a fit for installations where the bowl is checked as part of routine rounds. The regulator is the low-pressure type, intended for circuits set well below standard ranges; its exact setting span is confirmed on the datasheet. A round gauge scaled in psi is fitted, a reverse/check valve is built in, and the unit is supplied without a mounting bracket.
It is a genuine AirTAC part, rated for a maximum inlet pressure of 1.0 MPa (145 psi) and operating from -5 to 70 C (non-freezing), with a metal bowl. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, PT, G and NPT thread options, manual, automatic or differential-pressure drains, 40 um or 5 um elements, and a choice of gauge styles and scales. Flow is published as curves rather than a single rating, so we confirm flow figures and the full datasheet for this model on request.
| Model | GFR300C08MLJC2TK AirTAC Filter Regulator NPT1/4 |
|---|---|
| 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. |
|---|---|
| C0 | 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-C0 (two-unit set) |
Feeding clean, low-pressure air to the forming and sealing stations of a blister packaging machine, where the low-pressure regulator holds a gentle setting and the 40 um element keeps water and pipe scale out of the seal cylinders.
Supplying filtered, regulated pilot air to pneumatically actuated control valves on a water-treatment skid, with the built-in reverse/check valve holding the pilot circuit if upstream pressure dips.
Regulating low-pressure air to blow-off nozzles that dry bottles on a bottling conveyor, with the manual drain opened during shift checks and the round psi gauge letting operators verify the setting at a glance.
Step through sizes 200/300/400/600 and the port ladder from 1/8 to 1 in to match the air demand of your line - and because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering. The real, decodable choices on this family: drain type (manual here, versus automatic or differential-pressure), filter grade (40 um standard, 5 um with code W for finer particulate), gauge style and scale (embedded square is standard, an external round gauge is optional, in MPa, psi or bar - this unit carries the round psi gauge), thread (PT is the standard; G and NPT are ordered options), and bracket (included by default, omitted with code J). This model is the low-pressure regulator type; its setting range is confirmed on the datasheet.
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 figure, so we do not quote a number here. Send us your line pressure, downstream demand and allowable pressure drop, and we will confirm the flow and the full datasheet for this exact model on request.
This unit drains by hand: the drain at the bottom of the metal bowl is opened during routine checks. If the installation is hard to reach or runs unattended, the same size is available with an automatic or differential-pressure drain under a different code. Note that the regulator on this model is the low-pressure type; its setting range is confirmed on the datasheet.
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.