The AirTAC GFR300C10LC2WK AirTAC Filter Regulator 3/8 in PT, 5 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 AirTAC GFR300C10LC2WK is a size-300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 5 um filter element (code W) for finer cleaning than the standard 40 um grade, a differential-pressure drain that bleeds condensate automatically as flow passes through, and the low-pressure type regulator for applications that run at reduced supply pressures. It is fitted with an external round gauge scaled in psi, a reverse/check valve (code K) that holds downstream pressure when the upstream supply is lost, and a mounting bracket. The port is PT3/8 (3/8 in PT thread), with G (BSPP) and NPT threads available as order options. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). The size-300 bowl is polycarbonate (PC).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, standard or low-pressure regulation, gauge style and scale, and an optional reverse/check valve. Flow figures for this series are published as curves rather than a single rating, so ask us to confirm sizing and datasheet details against your application before ordering.
| Model | GFR300C10LC2WK AirTAC Filter Regulator 3/8 in PT, 5 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) |
Filter-regulated air at reduced pressure feeds the clamping cylinders on a milling or turning fixture, with the 5 um element protecting the clamp valves and the check valve holding clamp pressure if the main supply drops.
A packaging line's sealing jaws and forming cylinders take cleaned, regulated air from this unit, keeping water and fine dirt out of the valves while the low-pressure type regulator suits stations that do not run at full line pressure.
A lab bench rig running pneumatic test cycles draws air through the 5 um element for cleaner supply, with the psi-scaled round gauge letting operators set and read the reduced pressure directly at the rig.
Size and port: the 300 size with a 3/8 in PT port sits mid-range in the GFR line (200/300/400/600); step up or down according to the flow your line needs, and let us check the published flow curves against your demand. Drain: this unit uses the differential-pressure drain, which discharges condensate automatically while air flows; automatic (A) and manual (M) drains are alternatives in the same size. Filtration: the 5 um element here suits finer-priority circuits; the standard grade is 40 um. Gauge: this build has an external round gauge scaled in psi; an embedded square gauge with MPa, psi or bar scales is also available. The reverse/check valve (K) is fitted, and the mounting bracket is included. Thread is PT as standard; specify G (BSPP) or NPT when ordering. Because flow is published as curves and not a single rating, ask us to confirm sizing against your application 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 one number. Tell us your line pressure and the flow your application needs, and we will confirm the correct size from the datasheet curves on request before you order.
The W in the code GFR300C10LC2WK selects the 5 um filter element instead of the 40 um standard grade, for finer removal of water and particulate. The K selects a reverse/check valve, which holds downstream pressure if the upstream supply is interrupted. Both are order-time choices on the GFR300; the differential-pressure drain and included bracket are standard on this build.
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.