The AirTAC GFR300C10LC2WGK AirTAC Filter Regulator G3/8, 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 GFR300C10LC2WGK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This unit is built on the GFR300 size with a G3/8 (BSPP) port, the 5 um filter element (code W) for finer filtration than the standard 40 um grade, a differential-pressure drain, and the low-pressure regulator type (code L). It is fitted with a round pressure gauge scaled in psi, a reverse/check valve (code K) that holds downstream pressure if the supply drops, a metal bowl and a mounting bracket. Rated for a maximum inlet pressure of 1.0 MPa (145 psi) and -5 to 70 C operation (non-freezing).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and can be ordered with manual or automatic drains, a 40 um or 5 um element, embedded square or external round gauges in MPa, psi or bar scales, and PT, G or NPT threads. 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 | GFR300C10LC2WGK AirTAC Filter Regulator G3/8, 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) |
Carton-sealing and tray-forming stations often run clamp cylinders at reduced pressure. This unit filters the shop air and holds a low, stable setting to the clamping circuit, while the fitted check valve keeps the clamp from releasing during a supply dip.
Pneumatically actuated butterfly and ball valves on a water-treatment skid need clean, steady pilot air. The 5 um element protects the positioner and solenoid valves, and the regulator sets the low pilot pressure the actuator requires.
Workholding and part-ejection cylinders on a machining centre that run at reduced pressure take filtered, regulated air from this unit; the psi-scaled gauge lets the setter read the clamping pressure directly at the machine.
The real choices on a GFR are size and port, drain type, filter grade, gauge and thread. This model is the 300 size with a G3/8 (BSPP) port; step up or down a size when your demand differs, since larger sizes carry larger ports and more flow capacity. The 5 um element (code W) suits circuits feeding finer components; the standard grade is 40 um. The drain here is differential-pressure, which bleeds the bowl as flow passes; automatic and manual drains are order options. The round gauge reads in psi, with square embedded gauges and MPa or bar scales available as alternatives. Flow 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 GFR300 flow as curves rather than a single rated figure, so we do not quote a number here. Send us your application details - port size, expected air consumption and line pressure - and we will confirm the flow figures and the full datasheet for this exact model on request.
L is the low-pressure regulator type, intended for circuits set well below standard regulator ranges; the exact adjustment range for the low-pressure type is not published in our material, so confirm your set point with us before ordering. K means a reverse/check valve is fitted, which holds downstream pressure if the upstream supply is lost.
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.