The AirTAC AirTAC GFR300C10ALC2WK Low-Pressure Filter Regulator PT3/8 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 GFR300C10ALC2WK is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the 300 size with a PT3/8 port, the low-pressure regulator type, a 5 um filter element (code W), an automatic drain on the metal bowl, an external round gauge reading in psi, a reverse/check valve fitted, and the mounting bracket included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and catalogue options for drain type, 40 um or 5 um filtration, gauge style and scale, thread (PT standard, G and NPT to order), bracket and reverse valve. Flow is published as curves rather than a single rating, so we confirm flow and full datasheet figures on request before you order.
| Model | AirTAC GFR300C10ALC2WK Low-Pressure Filter Regulator PT3/8 |
|---|---|
| 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) |
Point-of-use conditioning for a carton-forming and sealing line: the 5 um element and the low-pressure regulator deliver clean, reduced-pressure air to seal cylinders and small actuators fed from a shared plant header.
Conditions and regulates air for gate and divert cylinders on a bottling conveyor, with the automatic drain handling condensate carried over from the main line and the reverse/check valve protecting the downstream circuit if supply dips.
A low-pressure regulated supply for lab benches and analytical instruments that cannot accept full line pressure, with 5 um filtration helping protect sensitive pneumatic controls and fittings.
Size and port step up from 200 to 600 as air demand grows; this unit is size 300 with a 3/8 inch PT port. Filtration here is 5 um (code W); the standard element is 40 um, so choose W only where finer filtration matters. Drain is automatic, so condensate is expelled without manual attention; manual (M) and differential-pressure (default) drains are the other catalogue choices. The gauge on this unit is the external round type with a psi scale; an embedded square gauge with MPa, psi or bar scales is the standard alternative. Thread is PT as standard, with G (BSPP) and NPT available as order options, and the bracket is included. The regulator is the low-pressure type; its exact adjustment range is not published in the catalogue, so ask us to confirm it against your setpoint. Flow is published as curves, not a single rating - ask us to confirm sizing against the application before ordering.
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 there is no one l/min or SCFM number we can quote for this unit. Send us your inlet pressure, setpoint and expected air demand and we will confirm the sizing from the datasheet on request before you order.
This unit carries drain code A: an automatic drain expels collected condensate from the bowl without anyone having to open it manually. The catalogue also offers manual drain (code M) and the differential-pressure drain as the default, and the same drain choices apply across the GF, GFR, GFC and GC families.
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.