The AirTAC GFR300C10LF1WTK AirTAC Filter Regulator NPT3/8, 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 GFR300C10LF1WTK is a filter regulator: it removes water and particulate from compressed air and holds a downstream pressure setting in one body. This unit is built on the 300 size with a 3/8 in NPT port, a 5 um filter element (code W), differential-pressure draining, and the low-pressure regulator type. It comes with the embedded square gauge scaled in MPa, a fitted reverse/check valve, a mounting bracket, and a metal bowl that collects the drained water. 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 in to 1 in, in PT, G and NPT threads, with 40 um or 5 um elements, manual, automatic or differential-pressure drains, standard or low-pressure regulation, gauge and bracket options, and an optional reverse/check valve. Because flow is published as curves rather than a single rating, we confirm the datasheet figures for your application on request.
| Model | GFR300C10LF1WTK AirTAC Filter Regulator NPT3/8, 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) |
Filtered and regulated air for the stopper and capper cylinders on a bottling line. The 5 um element keeps water and particles out of the downstream valves, the low-pressure type suits circuits that run at low set pressures, and the differential-pressure drain bleeds collected water while the line runs.
Air preparation for a small bench press: the regulator holds the working pressure the operator sets, the embedded square MPa gauge shows that setting at a glance, and the fitted check valve blocks backflow toward the supply side if upstream pressure is lost.
A single supply point for the divertor and stop cylinders along a parcel-conveyor line. One compact body handles both filtration and regulation, the mounting bracket fixes the unit to the frame, and the metal bowl gives a serviceable water collection point.
Start with the size and port: the GFR series steps through sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and the right step depends on the air demand of the circuit downstream. Then set the options that this code shows are available: drain type (differential-pressure as here, automatic, or manual), filter grade (40 um standard or 5 um as fitted here), gauge scale (MPa, psi or bar), thread (PT standard, with G and NPT as orderable options), bracket, and the reverse/check valve. Note that this unit carries the L code, so it is the low-pressure regulator type rather than the standard version.
One honest routing note: AirTAC publishes flow for this family as performance curves, not as a single rated figure, so we cannot quote you a number here. Ask us to confirm the datasheet curve 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 GFR300 flow as performance curves rather than as a single rated figure, so we do not quote a number. Ask us to confirm the datasheet curve against your flow requirement before you order.
This unit carries the L code, so its regulator is the low-pressure type rather than the standard version. The exact adjustment range for the low-pressure type is not published in our data sheet, so please confirm the set-pressure window with us before ordering.
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.