The AirTAC GFR300-10F2T AirTAC Filter Regulator 3/8 in NPT, 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 PT3/8" 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 AirTAC GFR300-10F2T is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size-300 unit has a 3/8 in NPT port, standard 40 um filtration, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and an embedded square gauge scaled in psi so the set pressure is always visible. The regulation range is 0.15-0.9 MPa (20-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi) and an operating temperature of -5 to 70 C (non-freezing). The polycarbonate bowl is protected by a metal bowl guard, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR series is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of 40 um or 5 um (code W) filtration, differential-pressure, automatic or manual drains, psi/MPa/bar gauge scales, and G (BSPP), NPT or PT threads. Flow figures for this series are published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR300-10F2T AirTAC Filter Regulator 3/8 in NPT, 40 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT 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 — square, psi 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. |
|---|---|
| 10 | Port size PT3/8". 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Installed at the drop from a compressed-air ring main, it filters water and pipe scale from the supply and holds a steady regulated pressure for the whole machine or work cell it feeds.
On packaging machinery where cylinders, grippers and air jets run continuously, the differential-pressure drain and 40 um element keep moisture and debris out of the valves while the gauge shows the set pressure at a glance.
Fitted at a bench or maintenance drop, it gives technicians clean, correctly regulated air for air tools, blow-off and test rigs, with the psi-scaled square gauge making daily setting checks quick.
Start with the port and size: size 300 with a 3/8 in NPT port suits lines where the air demand is beyond what a 1/4 in unit can pass, but step up to size 400 or 600 if your flow curve requires it - we can check the published flow curves against your demand before you order. Choose the drain type: this unit's differential-pressure drain is the fit-and-forget default; pick automatic (code A) for unattended continuous duty or manual (code M) where you want scheduled draining. The 40 um standard element is right for general plant air; specify 5 um (code W) for finer protection of valves and actuators. The embedded square gauge here reads in psi; MPa and bar scales are available, and an external round gauge is optional. Thread is NPT on this unit; G (BSPP) and PT are catalogue options. A mounting bracket is included.
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 GFR series as curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Tell us your line pressure, set pressure and air demand and we will confirm the sizing against the datasheet curves on request before you order.
This unit's standard differential-pressure drain uses the airflow itself to bleed collected condensate from the polycarbonate bowl, with no operator action needed. If the unit runs continuously or unattended, the automatic drain (code A) is the better choice; if you prefer scheduled manual draining, specify code M. All three drain types are catalogue options within the same GFR300 size.
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.