AirTAC GF300-08 Filter (GF30008J)
The AirTAC AirTAC GF300-08 Filter (GF30008J) 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 PT1/4" 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 sizePT1/4"
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Inlet pressure0.15 - 1.0 MPa (22 - 145 psi)
- Bowl materialPC
- ThreadPT
- BracketSupplied without bracket
- 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 GF300-08 Filter (GF30008J)
The AirTAC GF30008J is a G-series compressed-air filter only: it strips water and particulate from the line - no regulation, no lubrication. This configuration carries the standard 40 um element, the default differential-pressure drain, and the J code means no mounting bracket is supplied, so the unit is plumbed in-line or fixed by other means. The 300 size with PT1/4 (PT thread) port fits 1/4-inch branch lines; the polycarbonate bowl gives a clear view of condensate. Maximum working pressure is 1.0 MPa (145 psi), temperature -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GF series runs from 200 to 600 size, with 5 um optional filtration, automatic, manual or differential-pressure drains, and G/NPT thread options. Flow is published as curves rather than one rated figure; we confirm datasheet and flow figures on request.
AirTAC GF300-08 Filter (GF30008J) Technical Specifications
| Model | AirTAC GF300-08 Filter (GF30008J) |
|---|---|
| Series | GF300 air filter |
| Port size | PT1/4" (PT thread) |
| Filtering grade | 40 µm |
| Drain type | Differential-pressure drain |
| Bracket | Supplied without bracket |
| 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 GF300-08 Filter (GF30008J)
| GF300 | G-series air filter, 300 body — sets the port range. |
|---|---|
| 08 | Port size PT1/4". 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). |
| J | Supplied without bracket. 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 · PT1/4" · 40 µm |
|---|---|
| One size down | GF200 |
| One size up | GF400 |
| Line order | Filter first, then regulator, then lubricator |
Where the AirTAC GF300-08 Filter (GF30008J) Is Used
Plant-wide branch line drops
In-line filtration at 1/4-inch take-offs from a factory air main, protecting downstream tools and fittings from rust scale and condensed water carried in from the compressor room.
Control cabinet pneumatic supplies
Mounted inside or beside a control cabinet where a bracket is unnecessary because the unit hangs on the piping itself, filtering air feeding cabinet pneumatics and small actuators.
Truck and trailer air prep points
Service-point filtration on vehicle maintenance bays, cleaning the shop air used with impact drivers and inflation tools before it reaches the vehicle's own pneumatics.
Is the AirTAC GF300-08 Filter (GF30008J) the Right Filter?
Pick the 300/1/4-inch step when your branch line and air demand sit in the mid-small range - larger sizes carry larger ports and more flow. The blank drain here is differential-pressure, AirTAC's default; specify M for manual or A for automatic if the installation cannot rely on pressure differential to spill condensate. The standard blank element is 40 um; add W for 5 um. J removes the bracket for panel or in-line mounting where a bracket would be in the way. Thread is PT as the standard, with G and NPT as catalogue options. 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 (PT1/4" 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 GF300-08 Filter (GF30008J) FAQ
AirTAC publishes flow for the GF series as curves, not as a single rated number, so we do not state a figure here. Tell us your working pressure and required air demand and we will confirm the flow figures from the datasheet on request.
J is the no-bracket code: the unit is supplied without a mounting bracket, for in-line or self-supported installation. The same filter with a bracket included simply drops the J from the code.
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.
Request a Quote for AirTAC GF300-08 Filter (GF30008J)
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, availability and lead time — usually within 7-8 hours.