The AirTAC GFR300C15MLJF2W AirTAC Filter Regulator PT1/2, 5 um 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 GFR300C15MLJF2W is a 300-size filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is built on a PT1/2 port with PT thread, carries the fine 5 um filter element instead of the standard 40 um, and drains by hand through its manual drain, so an operator opens the drain when needed rather than relying on an automatic mechanism. It is the low-pressure regulator type and ships with a fitted embedded square gauge scaled in psi; no mounting bracket and no reverse/check valve are included in this variant.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with port options, drain types, filter grades, gauge styles and scales, bracket choices and G/NPT thread variants available across the range. Flow is published by AirTAC as curves rather than a single rated figure, so we confirm the datasheet and sizing figures for your application on request.
| Model | GFR300C15MLJF2W AirTAC Filter Regulator PT1/2, 5 um |
|---|---|
| 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) |
Feeding filtered, regulated air to the cylinder and valve manifold of a carton-forming or case-sealing station, where the 5 um element helps protect sealing and gating actuators from water and fine debris.
Conditioning the compressed air feeding bench-top lab equipment and pneumatic sample-handling fixtures, where the low-pressure regulator type and fine 5 um filtration suit sensitive downstream devices.
Supplying regulated air to the pop-up diverters, stop gates and pusher cylinders along a conveyor line, with the square psi gauge giving operators a direct local pressure readout at the drop.
Start with the port step: this unit is the 300 size on a PT1/2 connection, and the GFR range steps through 200/300/400/600 with 1/8 in to 1 in ports, so match the size to the air demand of the circuit rather than upsizing blindly. Choose the drain to suit access: manual drain (this unit) suits stations an operator visits anyway, while automatic and differential-pressure drains suit less accessible drops. This unit carries the 5 um element (code W) where downstream equipment needs finer filtration than the 40 um standard. The fitted square gauge reads in psi; MPa and bar scales and an external round gauge are alternatives. PT is the standard thread, with G (BSPP) and NPT as order options, and brackets are optional (this variant has none).
Because AirTAC publishes flow only as curves and not as a single rated number, ask us to confirm sizing against your application 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 GFR series as curves, not as a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow and sizing figures from the datasheet on request before you order.
The 5 um element (code W) is the finer alternative to the 40 um standard element, chosen where downstream equipment needs cleaner air. The manual drain means an operator opens the drain by hand to expel collected water, unlike the automatic or differential-pressure drain options available in the GFR range.
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.