The AirTAC GFR300C08MLC2T AirTAC Filter Regulator NPT1/4 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 GFR300C08MLC2T is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 unit is built with a 1/4 in NPT port, a manual drain for emptying the bowl, the standard 40 um filter element, and the low-pressure regulator type. A round gauge scaled in psi is fitted so the set pressure can be read directly, and a mounting bracket is included for fixing the unit at the point of use.
This is a genuine AirTAC part. The GFR range spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options include G or NPT threads, automatic or differential-pressure drains, a 5 um filter element (code W), square or round gauges scaled in MPa, psi or bar, and a reverse/check valve. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing figures for your application.
| Model | GFR300C08MLC2T AirTAC Filter Regulator NPT1/4 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. |
|---|---|
| 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) |
Point-of-use conditioning ahead of a machining centre's pneumatic tool clamps and tool-change cylinders: water and particulate are stripped out and the clamp pressure is set and read locally on the fitted psi gauge.
Filtering and regulating the pilot air feeding pneumatically actuated butterfly and ball valves on a bottling or process line, where the low-pressure type is chosen to hold a lower set pressure for gentler valve seating.
Conditioning the air feeding the forming, sealing and ejector cylinders on a carton packaging machine, with the manual drain emptied during shift checks and the included bracket fixing the unit to the machine frame.
Size and port set the air capacity: the 300 body with a 1/4 in NPT port suits point-of-use drops, while stepping up to 400 or 600 suits lines that demand more air - bear in mind flow is published as curves rather than a single rating. Drain choice matters: this unit uses a manual drain, which needs someone to open it periodically; automatic or differential-pressure drains suit unattended installations. The 40 um element is the standard grade; specify code W for the 5 um element where finer filtration is needed. This configuration carries a round gauge scaled in psi; the embedded square gauge and MPa or bar scales are alternatives. Thread is NPT here, with PT (the standard) and G available to order, and the mounting bracket is included. As a low-pressure type, its adjustment range differs from the standard unit - we confirm the exact range from the datasheet on request. Ask us to check sizing against your flow curve before ordering.
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 as curves, not as a single rated figure, so we do not quote a number here. Send us your line pressure, downstream demand and port size and we will confirm the flow and sizing from the datasheet on request.
The C2 in the code specifies the optional external round gauge scaled in psi, fitted so the regulated pressure can be read directly. The embedded square gauge is the standard alternative, and MPa or bar scales can be ordered. Drain type, thread and the 5 um filter element are also decodable options if this configuration needs changing.
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.