AirTAC GF300-08 Filter (GF30008MJ)
The AirTAC AirTAC GF300-08 Filter (GF30008MJ) 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 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 grade40 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 (GF30008MJ)
The GF30008MJ is an AirTAC G-series air filter: it removes water and particulate from compressed air and does not regulate pressure or add oil. This unit is built in the 300 size with a 1/4 in PT port, carries the standard 40 um element, and has a manual drain, so an operator bleeds accumulated condensate from the polycarbonate bowl by hand. The J code means no mounting bracket is fitted. Because the drain is manual, the working inlet range for this 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, a choice of 40 um standard or 5 um (W) filtration, manual, automatic or differential-pressure drains, 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 (GF30008MJ) Technical Specifications
| Model | AirTAC GF300-08 Filter (GF30008MJ) |
|---|---|
| Series | GF300 air filter |
| Port size | PT1/4" (PT thread) |
| Filtering grade | 40 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 (GF30008MJ)
| 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. |
| (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 (GF30008MJ) Is Used
Air feed to a pneumatic riveter
Fitted at the drop of a bench air line, it strips water and pipe scale before they reach the riveter's trigger valve and cylinder, and the manual drain lets an operator bleed off accumulated condensate at the end of each shift.
Workshop tyre-inflation station
On a 1/4 in take-off at a garage wall point, it keeps rust particles and condensate out of the inflation gauge and chuck. The 40 um element suits general workshop air, and the manual drain is emptied during routine checks.
Packaging-table cylinder supply
Placed ahead of the solenoid valves driving a semi-automatic carton-taping table, it removes moisture and debris that would otherwise cause valve sticking, with the manual drain bled during end-of-day clean-down.
Is the AirTAC GF300-08 Filter (GF30008MJ) the Right Filter?
The 300 size sits mid-range in the GF family with a 1/4 in PT port; step down to 200 or up to 400/600 if your line porting or air demand calls for it. Drain choices are manual, automatic or differential-pressure - this is the manual version, rated 0-0.9 MPa inlet, best where an operator is present at shift end to bleed the bowl. Filtration here is the standard 40 um element; the W-suffix variant gives 5 um. PT thread is standard, with G (BSPP) and NPT available 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 curves 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 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 (GF30008MJ) FAQ
AirTAC publishes GF-series flow as performance curves, not as a single rated figure, so we do not quote a number here. Tell us your line pressure and air demand and we will confirm the sizing against the datasheet curves on request.
The M code fits a manual drain valve, so an operator opens it to bleed accumulated water from the bowl. In this manual-drain configuration the working inlet range is 0-0.9 MPa; automatic and differential-pressure drain versions are rated to 1.0 MPa (145 psi).
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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 GF300-08 Filter (GF30008MJ)
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, availability and lead time — usually within 7-8 hours.