
The AirTAC Airtac GF Filter GF300C15MJ 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.
GF300C15MJ is an AirTAC G-series air filter: it removes condensed water and particulate from compressed air only - no regulation, no lubrication. The J suffix deletes the mounting bracket, so this unit is intended for installations where it is direct-connected in line or otherwise supported without a bracket. The 300 size carries a 1/2 in PT (standard) port, the M suffix specifies a manual drain on the PC (polycarbonate) bowl, and the element is the standard 40 um grade. Maximum inlet pressure is 0-0.9 MPa for this manual-drain filter; operating temperature is -5 to 70 C (non-freezing).
This is a genuine AirTAC part, one configuration within the G-series 200/300/400/600 range that offers different ports and threads (PT standard, G and NPT as catalogue options), automatic and differential-pressure drain variants, and a 5 um element option. Flow is published as curves rather than a single rated figure, so we confirm datasheet and flow figures on request.
| Model | Airtac GF Filter GF300C15MJ |
|---|---|
| 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.
| GF300 | G-series air filter, 300 body — sets the port range. |
|---|---|
| C1 | 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.
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 |
Water and particle removal ahead of air-cylinder-driven diverters and stoppers on a conveyor line, installed in-line without a bracket.
Protecting impact tools, ratchets and blow guns on maintenance-shop air drops, with manual bowl draining during shift checks.
Line filtration inside control panels and machine sub-plates where the filter is panel-supported and a bracket would be surplus.
Choose this code when you want the 300 body with a 1/2 in PT port but no mounting bracket (J); the bracketed version is the plain GF300C15M. Drain is manual (M), so plan a routine to empty the PC bowl; choose A or the differential-pressure default if the line runs unattended. The 40 um element is the standard grade - add the W suffix for the 5 um option where finer filtration is required. Thread is PT as the standard; G (BSPP) and NPT are ordered options.
Sizing against flow must go through the curves: AirTAC publishes no single rated-flow number, so ask us to confirm datasheet figures for your application before ordering.
Quick checklist
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.
Yes, but not from a single rated number - AirTAC publishes filter flow as curves only. Send us your working pressure and consumption and we confirm the correct size and datasheet figures on request before you order.
Only the mounting hardware: J means no bracket is supplied, so the filter must be supported by its pipework or panel. Function is unchanged - it is still a 300-size air filter, 1/2 in PT port, manual drain, 40 um element.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, availability and lead time — usually within 7-8 hours.