The AirTAC GFR300C10ALC3WT AirTAC Filter Regulator NPT3/8 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 GFR300C10ALC3WT is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is the 300 size with a 3/8 in NPT thread, a 5 um filter element (code W) for finer filtration than the standard 40 um grade, an automatic drain that clears collected condensate without manual attention, and a fitted round pressure gauge reading in bar. It is the low-pressure regulator type, and a mounting bracket is included. 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 GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, drain choices (differential-pressure, automatic or manual), 40 um standard or 5 um fine filtration, gauge and thread options, and two-unit or three-unit combinations if you later need lubrication as well. Flow is published as curves rather than a single rating, so ask us to confirm sizing figures and the full datasheet for this model on request.
| Model | GFR300C10ALC3WT AirTAC Filter Regulator NPT3/8 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) |
Supplying filtered, regulated air to spray guns in finishing booths, where the 5 um element helps keep water and particulates out of the paint line and the automatic drain copes with condensate during shift-long runs.
Regulating supply pressure on small pneumatic grippers and cylinders in assembly cells that run at low pressures, with the round bar gauge giving operators a clear setpoint reference at the machine.
Conditioning compressed air for laboratory analysers and test rigs that need fine 5 um filtration and gentle low-pressure regulation, with the automatic drain keeping the bowl clear during unattended operation.
Choose the size and port to match your air demand: this 300 size carries a 3/8 in NPT port, and smaller or larger steps in the family are available if your requirement differs - we can check the published flow curves against your application before you order. The 5 um element (W) suits points of use that need cleaner air than the standard 40 um grade; the automatic drain suits unmanned or hard-to-reach installations, while manual and differential-pressure drains are the alternatives. The fitted round gauge reads in bar; an embedded square gauge and MPa or psi scales are catalogue options. NPT is an order option on this model - PT is the catalogue standard thread, and G (BSPP) is also available. A mounting bracket is included.
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 data from the datasheet on request.
In this code, A sets the automatic drain, which expels collected condensate without manual intervention, and W sets the 5 um filter grade instead of the standard 40 um. Both are decodable choices: manual and differential-pressure drains and the 40 um grade are available in the same family if your installation prefers them.
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.