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AirTAC GF300 · Air Filter (water separation + particulate filtration)

Airtac GF Filter GF300C08AJW

The AirTAC Airtac GF Filter GF300C08AJW 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
$42.53 $47.27Save 10% Standard model — ready in 3-5 business days to process and dispatch
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About the Airtac GF Filter GF300C08AJW

The GF300C08AJW is a genuine AirTAC G-series air filter for compressed air. It removes water and particulate from the line and does not regulate pressure or add oil. This configuration is a size 300 unit with a 1/4 inch PT port, the optional 5 um (W) filter element instead of the standard 40 um grade, an automatic drain (A) that handles condensate without attention, and no mounting bracket. 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. Across the GF family you can choose sizes 200 to 600, ports from 1/8 to 1 inch, automatic, manual or differential-pressure drains, 40 um or 5 um elements, with or without a bracket, and G (BSPP) or NPT threads in place 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 GF300C08AJW Technical Specifications

ModelAirtac GF Filter GF300C08AJW
SeriesGF300 air filter
Port sizeSee datasheet (PT thread)
Filtering grade40 µm
Drain typeDifferential-pressure drain
BracketMounting bracket included
FluidCompressed air
Inlet pressure0.15 - 1.0 MPa (22 - 145 psi)
Max. working pressure1.0 MPa (145 psi)
Temperature range-5 to +70 °C (unfreeze)
Bowl materialPC
FeatureLow 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 GF300C08AJW

GF300G-series air filter, 300 body — sets the port range.
C0Port 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 modelGF300 · See datasheet · 40 µm
One size downGF200
One size upGF400
Line orderFilter first, then regulator, then lubricator

Where the Airtac GF Filter GF300C08AJW Is Used

precision_manufacturing

CNC machine shop air drops

Point-of-use filtration on machine-tool air drops, catching compressor carry-over and pipe scale before it reaches tool changers and clamps.

air

Paint spray booth supply

Pre-filtration ahead of spray guns in a paint booth, where the 5 um element helps keep moisture and fine dirt out of the finishing air.

factory

Packaging line air prep

Upstream protection on a packaging line air supply, draining condensate automatically so carton sealers and labelers see cleaner air.

Is the Airtac GF Filter GF300C08AJW the Right Filter?

Size 300 with a 1/4 inch PT port sits mid-range in the GF family; step up to size 400 or 600 for larger ports and more air, or down to size 200 for light-duty points. The 5 um element suits finer duty such as paint or instrument air; keep 40 um for general upstream protection. The automatic drain opens on collected condensate, which suits unmanned positions - manual and differential-pressure drains are the alternatives. PT is the standard thread, with G (BSPP) and NPT as catalogue options, and the J code means no bracket. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application 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
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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 GF300C08AJW FAQ

AirTAC publishes GF300 capacity as flow curves against pressure, not as one rated number, so we do not quote a figure here. Send us your working pressure and air demand and we will confirm the sizing and datasheet figures on request.

The standard element is 40 um for general protection; the W option is a 5 um element for points that see finer contamination, such as paint and instrument air. This model carries the 5 um grade, and the same filter is available with 40 um in the same size.

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Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, availability and lead time — usually within 7-8 hours.

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