The AirTAC GFR300C10MNT 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 GFR300C10MNT is a filter regulator: one body that removes water and particulate from compressed air and then regulates downstream pressure. This size 300 unit has 3/8 in NPT ports, a metal bowl with a manual drain for periodic draining, a 40 um standard filtration element, and a standard regulator adjustable from 0.05 to 0.9 MPa (7-130 psi). A mounting bracket is included and no gauge is fitted on this configuration. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and options including automatic or differential-pressure drains, a 5 um element (code W), gauges in MPa, psi or bar scales, and G or NPT thread variants. Flow is published as curves rather than a single rating, so ask us to confirm datasheet figures for your application.
| Model | GFR300C10MNT 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) |
Filtered, regulated air to pneumatic vises and clamps on a machining center, where the 3/8 in port feeds a clamp manifold and the 40 um element protects downstream valves from condensate and swarf-laden air.
Supplying regulator-set pressure to the cylinder-driven tuckers and sealing heads on a packaging line, with the manual-drain bowl emptied during scheduled changeover.
A filter regulator ahead of spray guns in a paint booth, delivering clean, pressure-controlled air to the guns without adding any oil mist to the finish.
Choose the size and port step (200/300/400/600, 1/8 to 1 in) against the air demand of your circuit; this unit steps up to 3/8 in NPT. Drain type is a real choice: manual (as here) means the bowl is emptied by hand at intervals, automatic drains continuously, and differential-pressure drains as the element loads up. Filter grade is 40 um standard or 5 um with code W. Gauges with MPa, psi or bar scales, thread (PT standard, G or NPT to order) and the bracket complete the configuration. Flow is published as curves, not a single rating, so 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 the GFR series as curves rather than a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow and datasheet figures for this 3/8 in unit on request.
The M in the code specifies a manual drain: the bowl is emptied by hand at intervals. The alternative codes are automatic drain (A) and differential-pressure drain (blank). With manual drain the regulator adjusts from 0.05 to 0.9 MPa (7-130 psi), and the unit operates from -5 to 70 C, non-freezing.
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.