
The AirTAC Airtac GFR Filter Regulator GFR300C15MC1W 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.
GFR300C15MC1W is an AirTAC G-series filter regulator in one body: filtration of water and particulate plus downstream pressure regulation. The 300 frame uses PT1/2 ports, and the W suffix upgrades the element to 5 um instead of the standard 40 um. The M suffix specifies a manual drain emptied by hand, C1 fits the round external pressure gauge with an MPa scale, and the mounting bracket is included.
This is a genuine AirTAC part for compressed air only: maximum working pressure 1.0 MPa (145 psi), operating temperature -5 to 70 C (non-freezing), with a polycarbonate (PC) bowl at 300 size. The standard regulator adjusts 0.05-0.9 MPa (7-130 psi) on this manual-drain build. AirTAC offers the same function across the 200/300/400/600 frames with 1/8 to 1 in ports, a choice of drains, both element grades, square or round gauges in MPa, psi or bar scales, and an optional check valve. Flow is published as curves rather than a single rating - we confirm datasheet figures on request.
| Model | Airtac GFR Filter Regulator GFR300C15MC1W |
|---|---|
| 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) |
Prep air for spray guns in a paint booth: the 5 um element removes finer particulate than the standard element, while the regulator sets gun supply pressure read on the round MPa gauge.
Feeds panel-mounted pneumatic instruments and transmitters: the 5 um element provides a finer filtration cut upstream of the regulator, with the setpoint held and shown on the MPa gauge.
Feeds print-and-apply labelers and inkjet coders on a packaging conveyor: the 5 um element supports cleaner air at the print heads, and the manual drain is emptied during line washdown checks.
Choices to weigh: 300 with PT1/2 is the mid-size step - go 400 or 600 for larger lines. The W element gives 5 um filtration; stay on the blank 40 um code for general plant air. Manual drain (M) widens the regulation range down to 0.05 MPa (7 psi) versus 0.15 MPa (20 psi) on automatic and differential-drain builds, but the bowl is drained by hand. The C1 round gauge reads in MPa; psi and bar scales are available under other codes. Thread is PT as standard, with G (BSPP) and NPT as catalogue options. Flow is published as curves, not a single rating - ask us to confirm sizing against your application before ordering.
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 rather than a single rated figure, so we do not state a number here. Send us your line pressure and flow demand, and we will confirm the curve and the full datasheet figures for GFR300C15MC1W on request.
The standard element is 40 um for general plant air; the W suffix fits a 5 um element where the downstream equipment calls for a finer filtration cut. The regulation range (0.05-0.9 MPa / 7-130 psi on this manual-drain unit), drain, gauge, bracket and PT1/2 port are otherwise identical.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.