Airtac GAFR Adjustable Filter Regulator GAFR300N08AL
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR300N08AL is a genuine two-in-one filter & regulator — a diversion-type water/particulate filter and a balanced pressure regulator built into ONE body. It has 1/4" ports, a 40 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi). It has no lubricator, so it adds no oil to the airflow.
- TypeFilter & regulator
- Port size1/4"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade40 µm
- Bowl materialNylon
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- Weight500 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAFR Adjustable Filter Regulator GAFR300N08AL
The GAFR300N08AL is a filter and regulator combined into a single body, saving rail space and reducing potential leak points compared to separate units. It handles 1/4in ports and delivers a lower pressure range of 0.15-0.4 MPa (20-58 psi) with a 40 um element.
Its nylon bowl and automatic drain make it suitable for applications where condensate needs to be expelled without manual intervention. The integrated circular gauge with MPa/psi scale allows for direct pressure monitoring, and the unit weighs 500 g with a 60 cc drain bowl.
Airtac GAFR Adjustable Filter Regulator GAFR300N08AL Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR300N08AL |
|---|---|
| Series | GAFR300 filter & regulator |
| Port size | 1/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | Nylon |
| Drain type | Automatic drain |
| Fluid | Air |
|---|---|
| Max. pressure | 1.0 MPa (145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Capacity of drain bowl | 60 cc |
| Bracket | Included |
| Weight | 500 g |
Specifications follow the official AirTAC GAFR catalogue (pages 235-236). Air must not freeze in the unit. The fitted circular gauge reads in MPa / psi, set by the PT thread code. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR300N08AL
| GAFR300 | GA300 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| N | Bowl material: Nylon. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 08 | Port size 1/4". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| A | Drain: Automatic drain. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 psi). This body offers Standard (S) or Lower pressure (L). |
| (blank) | Mounting bracket included. |
| (blank) | Circular pressure gauge fitted. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
The filter and the regulator are ONE body here — there is no separate GAF filter or GAR regulator part to assemble. Need lubrication downstream too? Add a lubricator by ordering the matching GAFC300-08 F.R.L. combination instead.
Size Class & Flow Envelope
- GAFR2001/8"-1/4" · 2000 L/min
- GAFR3001/4"-1/2" · 3500 L/min
- GAFR4003/8"-1/2" · 7000 L/min
- GAFR5003/4" · 8000 L/min
- GAFR6003/4"-1" · 12000 L/min
Figures are the end of the flow curve plotted in the AirTAC catalogue at 0.7 MPa inlet pressure — a sizing envelope for comparing bodies, not a rated flow. Read the catalogue curve for a real duty point. Outlet pressure falls as flow rises, so size a body with headroom above your peak demand.
| This model | GAFR300 · 1/4" · curve to 3500 L/min |
|---|---|
| One size down | GAFR200 |
| One size up | GAFR400 (curve to 7000 L/min) |
| Add a lubricator | GAFC300-08 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR300N08AL Is Used
Low-pressure assembly tools
Feed a precise 0.15-0.4 MPa supply to pneumatic screwdrivers or torque tools on a bench assembly line, where excessive pressure could damage small fasteners.
Laboratory air supply
Provide a stable, filtered air source to lab equipment that requires a gentle, regulated pressure, such as a small vacuum generator or a pneumatic actuator on a test rig.
Paint spray booth
Supply a consistent low pressure to a touch-up spray gun, ensuring a fine finish without the pressure spikes that can cause runs or orange peel.
Is the Airtac GAFR Adjustable Filter Regulator GAFR300N08AL the Right Air-Prep Unit?
Choose the GAFR300N08AL when you need a compact filter-regulator for a 1/4in line with a lower pressure output. The nylon bowl offers an alternative to standard PC, while the automatic drain (A) is ideal for unattended operation. This model includes the mounting bracket and a pressure gauge, but omits the 5 um element option and the reverse-flow valve.
For lines requiring lubrication downstream, the matching GAFC300-08 combination adds a lubricator. Note that 1.0 MPa max supply leaves about 0.6 MPa above the 0.4 MPa top of the range, so this L-type unit is best for low-pressure circuits only.
Quick checklist
- ✓ Body size for your peak flow (1/4" here)
- ✓ Standard 0.9 MPa or lower-pressure 0.4 MPa
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Element 40 µm or 5 µm
- ✓ Bracket kept or removed (J); add a lubricator = GAFC
Installation & Maintenance Notes
- check Install with the airflow arrow: IN to OUT, gauge/knob accessible.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Set pressure with the pressed-in self-locking knob; pull to adjust, press to lock.
- check Drain condensate before the 60 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 500 g unit on its bracket, not on the tubing.
This is a filter and regulator only — it delivers filtered, pressure-set air with no added oil. If a downstream tool needs lubrication, add a separate lubricator or order the GAFC300-08 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR300N08AL FAQ
The GAFR300N08AL is a filter & regulator with a 1/4in port. Its pressure range is 0.15-0.4 MPa (20-58 psi), with a max pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It operates in temperatures from -5 to 70 C, has a 60 cc drain bowl, and weighs 500 g.
The automatic drain (A) expels condensate from the 60 cc bowl without manual intervention, making it suitable for hard-to-reach locations or applications where regular maintenance is not guaranteed. This contrasts with the standard semi-auto+manual drain, which requires an operator to periodically open the drain valve.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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