
The AirTAC Airtac GFR Filter Regulator GFR300C10AN 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 GFR300C10AN is an AirTAC G-series filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure at your set point. This 300-size unit has a 3/8 in PT port, a standard 40 um filter element, and an automatic drain that ejects collected condensate from the PC bowl without manual attention. A mounting bracket is included (no J code). No pressure gauge is fitted (N) and no reverse valve is fitted. With automatic drain, the adjusting range is 0.15-0.9 MPa (20-130 psi); max inlet pressure is 1.0 MPa (145 psi) and operating temperature is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR filter regulator series is offered in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, drain choices (differential-pressure, automatic or manual), 40 um standard or 5 um (W) elements, G (BSPP) and NPT thread options, gauge and bracket variants, and a low-pressure type. Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application.
| Model | Airtac GFR Filter Regulator GFR300C10AN |
|---|---|
| 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) |
Bracket-mounted in a service bay panel, this unit regulates the air feed to impact wrenches and lifting bags from the shop main at 3/8 in.
Fix the supplied bracket to the machine frame and run 3/8 in tubing to the valve bank of a modular assembly cell, with filtered air at a set pressure.
Fit at the wall drop of a maintenance workshop so air tools see filtered air at a set pressure; the automatic drain handles condensate from the main.
Step up through 200 / 300 / 400 / 600 to match your port and flow need - this is the 300 size with 3/8 in PT thread. Drain options: differential-pressure (default), automatic (this unit) or manual (M). Filter grade: 40 um standard here; choose 5 um (W) for finer protection. This code includes the mounting bracket and omits the gauge (N); a gauge version with MPa, psi or bar scale is available, as are G (BSPP) and NPT threads instead of PT. Flow is published as curves, not a single rating, so 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 G series as curves rather than a single rated figure, so we do not state one number here. Send us your application details and we will confirm the sizing and provide the datasheet on request.
No - the N in GFR300C10AN means no gauge is fitted. Gauge versions are available: embedded square gauge as standard on gauge codes, or an external round gauge with an MPa, psi or bar scale. The adjusting range of this unit with automatic drain is 0.15-0.9 MPa (20-130 psi).
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.