The AirTAC GFR300C10MC1T AirTAC Filter Regulator NPT3/8 Manual Drain 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 GFR300C10MC1T is a filter regulator: it removes water and particulate from compressed air and sets downstream pressure in a single 300-size body with a 3/8 in NPT port. This configuration carries the standard 40 um filter element, a manual drain on the PC bowl, a fitted external round gauge scaled in MPa, and the standard regulator with an adjustment range of 0.05-0.9 MPa (7-130 psi). Maximum inlet pressure is 1.0 MPa (145 psi), operating temperature is -5 to 70 C (non-freezing), and a mounting bracket is included.
This is a genuine AirTAC part from the GFR filter-regulator line, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of manual, automatic or differential-pressure drain, a 5 um (code W) filter element option, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR300C10MC1T AirTAC Filter Regulator NPT3/8 Manual Drain |
|---|---|
| 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 a clamping or pressing cylinder: the 40 um element keeps water and swarf out of the valve stack, the round MPa gauge gives the operator a clear setpoint, and the manual drain is emptied during scheduled shift checks.
Feeding diverters and pusher cylinders on a food or carton packaging line, where the regulator holds a steady downstream pressure so divert timing stays repeatable and the bowl catches condensate before it reaches the actuators.
Mounted on the bracket inside a machine tool's air preparation panel, filtering and regulating the supply to tool-change cylinders and air blast circuits, with the MPa gauge letting maintenance verify setpoint at a glance.
Start with the port step: this unit is 300 size with a 3/8 in NPT port; step up to 400 or 600 if the line needs a larger port, or down to 200 for compact points of use. Because flow is published as curves rather than a single rating, send us your demand and we will confirm sizing against the datasheet before you order. Drain type is a real choice here: manual drain (this unit) needs periodic bowl draining, automatic drain handles it continuously, and differential-pressure drain suits lines where a pressure drop signal is preferred. Filter grade is 40 um standard or 5 um with the W code if downstream equipment needs finer filtration. Gauge options are the embedded square gauge or an external round gauge, scaled in MPa, psi or bar; this unit has a round MPa gauge. Thread is PT as the catalogue standard with G (BSPP) and NPT as order options - this unit is NPT. A bracket is included on this configuration.
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 one number here. Tell us your line demand and port size and we will confirm the flow from the datasheet for this exact 300-size, 3/8 in NPT unit before you order.
The M in the code specifies a manual drain: the PC bowl is emptied by hand at intervals, which suits attended cells with scheduled maintenance. If you prefer the bowl to discharge condensate continuously without attention, order the same GFR300 in 3/8 in with the A (automatic) drain code instead.
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.