The AirTAC GFR300C10MLNWTK 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 GFR series combines filtration and pressure regulation in a single body: air passes an element that strips out water and particulate, then flows through the integrated regulator, so one unit does both jobs in one panel position. This configuration, GFR300C10MLNWTK, is a size 300 unit with a 3/8 in NPT port, a 5 um filtration element (the finer of the two catalogue grades), a manual drain on the metal bowl specified for this build, the low-pressure regulator type, a fitted reverse/check valve (code K) and the included mounting bracket. No pressure gauge is fitted (code N). 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 GFR300 size sits in a family spanning sizes 200, 300, 400 and 600, with ports from 1/8 to 1 in, drain choices (differential-pressure, automatic or manual), 40 um standard or 5 um filtration, gauge options, standard or low-pressure regulator types, and PT as the standard thread with G (BSPP) or NPT as order options. Because AirTAC publishes flow only as curves rather than a single rating, we confirm flow and any other datasheet figure for your application on request.
| Model | GFR300C10MLNWTK 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) |
A pneumatic clamp on a machining centre that must hold workpieces at a reduced set point: the low-pressure regulator type is intended for circuits set below the standard band, while the 5 um element keeps the clamping valve free of water and fine particulate.
Point-of-use conditioning ahead of the pick-and-place cylinders on a packaging machine: filtered and regulated air from one body, a manual drain the operator opens as part of shift checks, and the included bracket for mounting beside the machine frame.
A regulated supply for air tools at a workshop bench: the 5 um element protects the tools from water and fine dirt, the metal bowl is specified in this configuration, and the fitted reverse/check valve (code K) completes the build exactly as ordered.
Step size and port (200/300/400/600; 1/8 to 1 in) against the flow your line needs - ask us to check the curve with you. Drain: this unit is manual (code M), so condensate is released by hand; automatic (A) or the differential-pressure default (blank) drain themselves where the installation allows access to the bowl. Filtration: 5 um here (code W) versus the 40 um standard. The low-pressure regulator type (code L) is the choice where the set point sits below the standard band; its exact adjustment range is not published in our sheet, so we confirm it on request. Gauge: none fitted (code N) - gauge options exist if you want one. Thread: NPT here; PT is the catalogue standard and G (BSPP) is also available to order. Mounting bracket included. If one body is not enough for your circuit, GFC (filter-regulator plus lubricator) and GC (full F.R.L.) combine functions instead.
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 this series as curves, not as a single rated figure, so we do not quote a number. Send us your application details and we will confirm the flow from the datasheet for this exact configuration before you order.
Code M fits a manual drain on the bowl, so collected condensate is released by hand as part of routine checks. If you prefer self-draining, the same size is available with an automatic drain (code A) or the differential-pressure drain that is the catalogue default - ask us and we will decode the alternative codes for you.
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.