The AirTAC GFR300C10AJF1WT 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 GFR300C10AJF1WT is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body, so one component does both jobs ahead of your actuators, valves and tools. This size 300 unit is threaded NPT3/8 (3/8 in), carries a 5 um filter element (the finer W grade, versus the 40 um standard), and has an automatic drain that ejects collected condensate without anyone opening the bowl. The fitted embedded square gauge reads in MPa, the regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and no mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The bowl on this size is polycarbonate.
This is a genuine AirTAC part. The GFR filter-regulator family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and is available with manual, automatic or differential-pressure drains, 40 um or 5 um elements, square or external round gauges in MPa, psi or bar scales, a low-pressure regulator option, a reverse/check valve option, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR300C10AJF1WT 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) |
Placed ahead of pneumatic clamps and workholding fixtures on a machining centre, it filters chips-and-coolant-line air to 5 um and holds a steady clamp pressure read locally on the MPa gauge.
On a packaging line, it conditions the air feeding diverter gates and pusher cylinders, with the automatic drain handling condensate on runs that operate unattended between shifts.
Feeding pick-and-place modules and gripper valves on a laboratory automation skid, the 5 um element protects sensitive directional valves while the regulator sets the exact working pressure.
Size and port are the first decision: step up through 200, 300, 400 and 600 as your required flow and pipe size grow - this unit is size 300 with a 3/8 in NPT port. Drain type is a real choice: automatic (as fitted here) suits unattended duty, manual suits periodic checks, and differential-pressure draining is the default where flow is steady. Filter grade is 40 um standard or 5 um with the W code - this unit carries the 5 um element for finer protection. Gauges can be the embedded square type (MPa, psi or bar scale) or an external round gauge, and threads come as PT (standard), G or NPT - this unit is NPT. A bracket is optional; this configuration omits it.
Because flow is published as curves rather than a single rating, we cannot quote one number here - ask us to confirm sizing against your application from 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 application and we will confirm the relevant flow figures from the datasheet on request before you order.
The 5 um element is the W filter-grade option - the standard grade is 40 um - chosen where downstream valves and actuators need finer protection. The automatic drain ejects collected condensate on its own, unlike the manual-drain or differential-pressure-drain versions of the same size 300 filter regulator.
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.