The AirTAC GFR300C10MF1TK AirTAC Filter Regulator 3/8 in NPT 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 GFR300C10MF1TK is a filter regulator: it removes water and particulate from compressed air and sets downstream pressure in a single body, so one unit does the job of a filter and a regulator in the air line. This size 300 configuration is threaded 3/8 in NPT, carries a 40 um standard filter element, and drains collected condensate by hand via the manual drain. The outlet pressure is adjusted across 0.05-0.9 MPa (7-130 psi), the embedded square gauge reads in MPa, and the fitted reverse/check valve holds the set pressure if the upstream supply is interrupted. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). A mounting bracket is included.
This is a genuine AirTAC part. The GFR filter-regulator family spans sizes 200, 300, 400 and 600 with a choice of ports, threads (PT standard; G and NPT as order options), drain types, 40 um or 5 um elements, gauge scales and a low-pressure variant. 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 | GFR300C10MF1TK AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| 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 feeding tool-change cylinders and clamping fixtures on a machining centre, with the check valve holding clamp pressure through brief supply dips.
Point-of-use preparation for the pneumatic cylinders on carton-forming and taping machines, where the 40 um element protects valves from water and debris carried in shop air.
Branch-line regulation for loom and winding-machine air cylinders, with the manual drain emptied during shift checks and the square MPa gauge giving operators a local pressure reference.
Start with the port step: sizes 200, 300, 400 and 600 map to increasing ports and flow capacity, so match the size to the air demand of the circuit rather than the pipe alone. This unit is the 3/8 in NPT step of size 300. Choose the drain next: manual (as here) suits attended installations where an operator blows down the bowl; automatic or differential-pressure drains suit unattended lines. Note that with a manual drain the regulation range is 0.05-0.9 MPa (7-130 psi). Pick the element grade: 40 um is standard, 5 um (code W) where finer protection is needed. The embedded square gauge is fitted here in MPa; an external round gauge with MPa, psi or bar scale is optional. Thread is PT as the AirTAC standard with G and NPT as orderable options - this code is the NPT version. A bracket is included, and the K code confirms a reverse/check valve is fitted.
Because flow is published as curves and not a single rating, send us your application details and we will confirm the datasheet figures and correct sizing 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 rather than a single rated figure, so we do not quote a number that is not in the datasheet. Tell us your line pressure and the air demand of the equipment, and we will confirm the flow-curve figures and check the sizing for you before you order.
The M in the code means condensate is drained by hand, which suits attended installations on a regular maintenance round. The same GFR300 size is also available with an automatic drain or the differential-pressure drain; note that the manual-drain version regulates across 0.05-0.9 MPa (7-130 psi). This code also carries a 40 um element, a square MPa gauge, a reverse/check valve and an included bracket.
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.