AirTAC GF300-08 Filter (GF30008MJW)
The AirTAC AirTAC GF300-08 Filter (GF30008MJW) is a genuine G-series air filter. It separates condensed water and filters particulate from the compressed-air line through a 5 µm element, with PT1/4" ports and a manual 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 grade5 µm
- DrainManual drain
- Inlet pressure0 - 0.9 MPa (0 - 131 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 (GF30008MJW)
The GF30008MJW is an AirTAC G-series air filter: it removes water and particulate from compressed air, with no pressure regulation and no lubrication. It is built in the 300 size with a 1/4 in PT port, and the W code swaps the standard element for a finer 5 um grade, suiting air that feeds sensitive equipment. The drain is manual, so condensate is bled from the polycarbonate bowl by hand, and the J code means no mounting bracket is fitted. Working inlet range for this manual-drain configuration is 0-0.9 MPa.
This is a genuine AirTAC part, not an imitation. The GF family spans 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, 40 um or 5 um (W) filtration, a choice of drain type, and PT as the standard thread with G (BSPP) and NPT as catalogue options. AirTAC publishes flow as performance curves rather than a single rating, so we confirm datasheet figures on request.
AirTAC GF300-08 Filter (GF30008MJW) Technical Specifications
| Model | AirTAC GF300-08 Filter (GF30008MJW) |
|---|---|
| Series | GF300 air filter |
| Port size | PT1/4" (PT thread) |
| Filtering grade | 5 µm |
| Drain type | Manual drain |
| Bracket | Supplied without bracket |
| Fluid | Compressed air |
|---|---|
| Inlet pressure | 0 - 0.9 MPa (0 - 131 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 (GF30008MJW)
| 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". |
| M | Drain: Manual drain. Options are differential (blank), automatic (A) or manual (M). |
| J | Supplied without bracket. A bracket ships by default; J orders it without. |
| W | Filtering grade 5 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" · 5 µm |
|---|---|
| One size down | GF200 |
| One size up | GF400 |
| Line order | Filter first, then regulator, then lubricator |
Where the AirTAC GF300-08 Filter (GF30008MJW) Is Used
Laboratory instrument air supply
On the 1/4 in line feeding benchtop analytical instruments, the 5 um element screens fine particulate that could foul miniature fittings and internal passages, with the manual drain bled during weekly lab checks.
Spray-gun feed at a finishing bench
Installed just before the air cap supply on a small paint-finishing bench, it removes water and fine debris that would otherwise cause fisheyes and tip blockage; the manual drain is opened between spray sessions.
Pneumatic screwdriver line, electronics assembly
Mounted on the drop feeding torque-controlled screwdrivers at an electronics assembly bench, the 5 um element protects the tool's governor and clutch from fine contamination, with condensate drained at each shift change.
Is the AirTAC GF300-08 Filter (GF30008MJW) the Right Filter?
The 300 size is the mid-range step in the GF family with a 1/4 in PT port; move to 200 or to 400/600 depending on line porting and air demand. This is the 5 um (W) variant - choose it ahead of spray equipment, instrumentation or fine pneumatic components, and stay with the 40 um standard element for general cylinder and valve supply. Drain options are manual, automatic or differential-pressure; this is the manual type, rated 0-0.9 MPa inlet. PT thread is standard, with G (BSPP) and NPT as catalogue options, and this J-coded unit omits the optional mounting bracket.
Flow is published as curves, not a single rating, so ask us to confirm sizing against the datasheet 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 - 0.9 MPa (0 - 131 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Replace the 5 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 (GF30008MJW) FAQ
AirTAC publishes GF-series flow as performance curves rather than one rated figure, so no single number applies. Share your line pressure and required air demand and we will confirm the correct size against the datasheet curves on request.
It swaps the standard 40 um element for a finer 5 um grade, for air feeding sensitive equipment such as spray guns or instrumentation. The unit remains a filter only: it does not regulate pressure and does not add lubricant.
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 (GF30008MJW)
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, availability and lead time — usually within 7-8 hours.