Airtac GF Filter GF300C08J
The AirTAC Airtac GF Filter GF300C08J is a genuine G-series air filter. It separates condensed water and filters particulate from the compressed-air line through a 40 µm element, with See datasheet ports and a differential-pressure drain. A filter does not set downstream pressure — pair it with a GR regulator, or use a GFR filter regulator, when pressure control is needed.
- TypeAir filter
- Port sizeSee datasheet
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Inlet pressure0.15 - 1.0 MPa (22 - 145 psi)
- Bowl materialPC
- ThreadPT
- BracketMounting bracket included
- 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 GF Filter GF300C08J
The GF300C08J is a genuine AirTAC G-series air filter for compressed air. It removes water and particulate only - there is no pressure regulation and no lubrication. This configuration is a size 300 unit with a 1/4 inch PT port, the standard 40 um filter element, the default differential-pressure drain, and no mounting bracket (J). Maximum working pressure is 1.0 MPa (145 psi) and the operating range is -5 to 70 C, non-freezing.
The 300 frame carries a PC (polycarbonate) bowl. In the GF family you can specify sizes 200 to 600, ports from 1/8 to 1 inch, the finer 5 um element, automatic or manual draining in place of the differential-pressure default, a bracket, and G (BSPP) or NPT threads instead of PT. AirTAC publishes filter capacity as flow curves rather than a single rated figure, so we confirm flow and other datasheet numbers on request.
Airtac GF Filter GF300C08J Technical Specifications
| Model | Airtac GF Filter GF300C08J |
|---|---|
| Series | GF300 air filter |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Drain type | Differential-pressure drain |
| Bracket | Mounting bracket included |
| Fluid | Compressed air |
|---|---|
| Inlet pressure | 0.15 - 1.0 MPa (22 - 145 psi) |
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Bowl material | PC |
| Feature | Low pressure loss |
Specifications follow the official AirTAC G-series air-preparation data. The inlet-pressure band is set by the drain type: automatic and differential-pressure drains run 0.15 - 1.0 MPa, a manual drain runs 0 - 0.9 MPa. 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.
Model Code: Airtac GF Filter GF300C08J
| GF300 | G-series air filter, 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. Options are differential (blank), automatic (A) or manual (M). |
| (blank) | Mounting bracket included. A bracket ships by default; J orders it without. |
| (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. |
Field order is size, port, drain, bracket, grade, thread — a blank position takes the default. Example: GF300-10AJW is a 300 body, PT3/8", automatic drain, no bracket, 5 µm element, PT thread.
Size Class
- GF200PT1/8" - PT1/4"
- GF300PT1/4" - PT1/2"
- GF400PT3/8" - PT1/2"
- GF600PT3/4" - PT1"
A larger body carries a larger port and passes more air at the same pressure drop. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom rather than from a single rated figure. The GF600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GF300 · See datasheet · 40 µm |
|---|---|
| One size down | GF200 |
| One size up | GF400 |
| Line order | Filter first, then regulator, then lubricator |
Where the Airtac GF Filter GF300C08J Is Used
Assembly plant ring main
General-purpose filtration on assembly plant ring mains, where the standard 40 um element handles bulk dirt ahead of finer downstream stages.
Truck service bay air
Filtering shop air in truck service bays before impact wrenches and tire inflators, with the differential-pressure drain keeping the bowl working.
Fixture clamping circuits
Protecting pneumatic clamping circuits on welding fixtures from moisture and pipe scale at each fixture drop.
Is the Airtac GF Filter GF300C08J the Right Filter?
Size 300 with a 1/4 inch PT port covers a broad mid-range of machine supply points; step to size 400 or 600 for larger ports and heavier demand, or to size 200 for compact duty. The 40 um element is the standard grade for coarse protection - choose the W option for a 5 um element where finer filtration matters. This unit uses the default differential-pressure drain; automatic (A) and manual (M) drains can be ordered in the same size, and manual-drain units have a lower maximum inlet pressure. PT is the standard thread with G (BSPP) and NPT as options, and the J code means no bracket. Flow is published as curves, not a single rating, so ask us to confirm sizing before ordering.
Quick checklist
- ✓ Body size for your peak flow (See datasheet here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain: differential, automatic or manual
- ✓ Manual drain caps inlet at 0.9 MPa
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Bracket needed, or order with J
Installation & Maintenance Notes
- check Mount vertically, bowl down, and follow the airflow arrow.
- check Put the filter first in the air-preparation line.
- check Keep inlet pressure within 0.15 - 1.0 MPa (22 - 145 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Replace the 40 µm element when pressure loss rises.
The PC bowl must not be cleaned with solvents or exposed to synthetic oils that attack polycarbonate — wipe it with a dry cloth. A filter removes water and particulate only; it does not regulate pressure or add lubrication.
Airtac GF Filter GF300C08J FAQ
AirTAC publishes GF300 capacity as flow curves against pressure, not as a single rated figure, so we do not quote a number here. Give us your working pressure and air demand and we will confirm sizing and the datasheet figures on request.
This model uses the default differential-pressure drain. The same filter can be ordered with an automatic drain (code A) or a manual drain (code M); note that manual-drain GF units have a lower maximum inlet pressure of 0.9 MPa, so check the code before ordering.
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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.
Request a Quote for Airtac GF Filter GF300C08J
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, availability and lead time — usually within 7-8 hours.