The AirTAC GFR300C15MC2W AirTAC Filter Regulator 1/2 in, 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 GFR300C15MC2W is a size-300 filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This configuration carries a PT1/2 (1/2 in) PT-thread port, a 5 um filter element (the finer of the two catalogue grades), a manual drain on the bowl, a standard regulator with a 0.05-0.9 MPa (7-130 psi) setting range, and an external round gauge reading in psi. The bowl on this 300 size is polycarbonate (PC), with a mounting bracket included.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600, with port sizes from 1/8 in to 1 in, PT, G or NPT threads, manual, automatic or differential-pressure drains, 40 um or 5 um elements, and gauge or no-gauge variants. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR300C15MC2W AirTAC Filter Regulator 1/2 in, 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) |
On a machining cell where pneumatic clamps and swing cylinders hold workpieces, this filter regulator cleans the supply to 5 um and holds a steady clamping pressure, with the psi gauge giving operators a direct setting reference.
Packaging machines running cylinders, air cushions and diverters on a 1/2 in supply benefit from water and fine particle removal plus stable regulated pressure, with the manual drain bled during scheduled changeovers.
Looms, winders and converting lines with many small actuated devices use this unit as a point-of-entry filter regulator, protecting downstream components from condensate and particulate while keeping actuation pressure consistent.
Step up or down through the 200/300/400/600 sizes to match the port and flow band your line needs; this unit sits at the 300 size with a 1/2 in PT port. Choose the drain to suit access: manual (as here) when an operator can bleed the bowl on a schedule, automatic for unattended duty, or the differential-pressure default. Pick the 5 um element (this unit) when downstream valves and cylinders need finer air than the 40 um standard, and set the gauge scale to MPa, psi or bar - this one reads psi. PT is the standard thread; G and NPT are order options. Brackets are included on this configuration.
Because flow is published as curves rather than a single rated figure, 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 GFR300 series as curves, not as a single rated number, so there is no one l/min or SCFM figure we can state. Tell us your working pressure and demand and we will confirm the relevant datasheet curve and sizing on request before you order.
The M in the code specifies a manual drain on the filter bowl: condensate is released by operating the drain by hand. Choose manual where the bowl is accessible and maintenance is on a schedule; choose the automatic or differential-pressure drain option where the unit runs unattended and collected water must be expelled without operator action.
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.