The AirTAC GFR300C10AF2WT 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 GFR300C10AF2WT is a 300-size filter regulator that removes water and particulate from compressed air and controls downstream pressure in a single body. This configuration carries a 3/8 in NPT port, a 5 um filter element for finer filtration than the standard 40 um grade, an automatic drain that vents collected condensate without manual attention, and an embedded square gauge reading in psi. The regulator is the standard type with a 0.15-0.9 MPa (20-130 psi) adjustment range, a mounting bracket is included, and no reverse/check valve is fitted. 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 is available in sizes 200, 300, 400 and 600 with a choice of port sizes, PT, G or NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um filtration, and MPa, psi or bar gauge scales. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C10AF2WT 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) |
Clean, regulated air to the tool-changer and clamping circuits of a machining centre, where the 5 um element protects fine valves and the psi gauge gives operators a direct setpoint readout.
A filter-regulator ahead of the cylinders and diverters on a carton-sealing or wrapping line, with the automatic drain handling condensate on a line that runs unattended across shifts.
A bench-side air preparation point on a factory assembly cell, stepping the header supply down to the working pressure the cell's tools and fixtures need while knocking out water and scale.
Size and port set the air capacity: the 300 size with a 3/8 in port sits mid-range in the GFR line, one step above the 200/1/4 in class and below the 400/1/2 in class - match it to the line size and demand of the circuit it feeds. The 5 um element (code W) suits points of use that see finer contamination than the standard 40 um grade handles; the automatic drain suits unattended or hard-to-reach installations, while manual and differential-pressure drains remain available in the family. The square gauge here reads psi; MPa and bar scales are alternatives. PT is the standard thread and G or NPT are order options - this unit is the NPT version. A bracket is included.
Because flow is published as curves and not as a single rated number, we do not quote a flow figure here. 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 flow for the GFR series as curves, not as a single rated figure, so we do not quote a number here. Tell us your line pressure and the air demand of your equipment and we will confirm the flow figures from the datasheet for this exact 300-size, 3/8 in NPT unit before you order.
The A in the code sets the automatic drain, which ejects collected condensate by itself - useful where the unit is mounted out of reach or on equipment that runs unattended; manual-drain and differential-pressure-drain versions are available if you prefer. The W sets the 5 um filter element, one grade finer than the 40 um standard, for downstream equipment that needs cleaner air.
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.