The AirTAC GFR300C10AF2 AirTAC Filter Regulator PT3/8, 40 um is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR300C10AF2 is an AirTAC GFR-series filter regulator: water and particulate filtration plus downstream pressure regulation combined in one body. This size 300 unit carries a PT3/8 (3/8 in) PT-threaded port, a 40 um standard filter element, an automatic drain that ejects collected condensate without manual attention, and a fitted embedded square gauge reading in psi. The standard-type regulator adjusts outlet pressure across 0.15-0.9 MPa (20-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi) and an operating temperature range of -5 to 70 C (non-freezing). The polycarbonate bowl suits general plant air, and the mounting bracket is included.
This is a genuine AirTAC part from the GFR300 series, one of four sizes (200, 300, 400, 600) spanning port sizes from 1/8 in to 1 in, with options including a 5 um element (code W), manual or differential-pressure drain, alternative gauge scales (MPa/psi/bar), G or NPT threads, and a reverse/check valve. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR300C10AF2 AirTAC Filter Regulator PT3/8, 40 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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.
| GFR300 | G-series filter regulator, 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 — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (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. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR300 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C1 (two-unit set) |
Feeding clean, regulated air to the cylinders and actuators on a carton forming and sealing line, with the automatic drain keeping condensate out of the valves during continuous shifts.
Regulating supply pressure to the pop-up diverters, stops and pushers along a distribution conveyor, so stroke forces stay consistent across the whole line.
Conditioning the air feeding grippers and small test-rig actuators in a laboratory automation cell, where the 40 um element and steady regulated pressure protect sensitive components.
Step up or down through the G-series sizes (200, 300, 400, 600) to match the port and flow band your line needs; this unit sits at size 300 with a PT3/8 port. Choose the drain to suit maintenance access: this configuration has an automatic drain, while manual and differential-pressure drains are available. The 40 um element fitted here is the standard grade; specify code W for the 5 um grade where finer particulate removal matters. The square gauge is fitted in a psi scale, with MPa or bar scales and an external round gauge as alternatives, and PT is the standard thread with G (BSPP) and NPT as order options. Flow for this series is published as curves, not a single rating, so send us your application details and we will confirm sizing against the datasheet before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR300 series as curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Send us your application details and we will confirm the flow figures from the datasheet so you can check sizing before ordering.
This configuration is coded with an automatic drain, which ejects collected condensate from the bowl without anyone having to open it - useful on lines that run unattended. The GFR300 series is also available with a manual drain or the differential-pressure drain as the default, and with a 5 um element (code W) instead of the 40 um standard grade, so you can order the variant that suits your maintenance routine.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.