The AirTAC GFR300C10AF2WK AirTAC Filter Regulator PT3/8, 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 GFR300C10AF2WK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady, in a single 300-size body with a PT3/8 (3/8 in) port. This configuration carries the 5 um element (code W) for finer filtration than the standard 40 um grade, an automatic drain that expels collected condensate without manual attention, an embedded square gauge reading in psi, a reverse/check valve (K) that holds downstream pressure when the supply drops, and a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator adjustment range is 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with a choice of ports, drain types, filter grades, gauge scales and thread forms (PT standard, with G and NPT available as order options). Bowls on sizes 200/300/400 are polycarbonate; size 600 uses aluminium alloy. Flow 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 | GFR300C10AF2WK AirTAC Filter Regulator PT3/8, 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) |
Feeds the tool-change clamps and air-blast nozzles on a machining cell: the 5 um element keeps fine debris out of the clamp cylinders while the regulator holds a steady setting for repeatable clamping, and the automatic drain clears condensate on an unattended shift.
Serves the pneumatic cylinders on a carton-forming and sealing line: filtered, regulated air keeps the seal and eject strokes consistent through the shift, the check valve holds the downstream setting during brief supply dips, and the psi gauge lets operators verify the line setting at a glance.
Supplies actuated valves and sample-handling cylinders on a laboratory automation bench: the 5 um grade suits the sensitive pilot valves, the automatic drain keeps the bowl clear without daily attention, and the bracket gives a tidy fixed mount beside the rig.
Start with the port step: this unit is 3/8 in on the 300 body; step up to 400 or 600 if the line needs more capacity, or down to 200 for compact drops - match the size to the flow your circuit actually needs. Choose the drain to suit access: automatic (fitted here) for unattended duty, manual where you prefer a controlled blow-down, or the differential-pressure default. Pick the element grade: 40 um standard for general protection, 5 um (this unit) where downstream valves and instruments want finer air. Gauge scale (MPa, psi or bar), thread form (PT standard, G or NPT to order) and the bracket are all decodable choices on the code.
One honest note before you order: AirTAC publishes flow as curves, not as a single rated number, so we do not quote a flow figure here. Send us your application details and we will confirm the sizing and datasheet figures against your requirement.
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 performance curves rather than a single rated figure, so we do not quote a flow number here. Tell us your application and required capacity and we will confirm the datasheet figures and check the sizing for you before you order.
The code spells it out: W selects the 5 um element instead of the 40 um standard grade, and A selects the automatic drain instead of the differential-pressure default. The 5 um grade suits downstream valves and instruments that want finer air; the automatic drain suits installations that are not checked daily. Both are catalogue options on the GFR300, and the manual-drain variant is available if you prefer a controlled blow-down.
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.