The AirTAC GFR300C10MLC2TK AirTAC Filter Regulator NPT3/8 Low-Pressure 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 GFR300C10MLC2TK is a 300-size filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is decodable from the code itself - a 3/8 in NPT port, a low-pressure regulator type, a manual drain on the metal bowl, a 40 um standard filter element, a round gauge reading in psi, a built-in reverse-flow (check) valve, and the mounting bracket included. 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 published in 200, 300, 400 and 600 sizes with port sizes from 1/8 in to 1 in, and with choices of drain type, filter grade, gauge style and scale, thread form and bracket. Because flow is published only as curves rather than a single rated figure, we confirm the datasheet and flow figures for this exact model on request.
| Model | GFR300C10MLC2TK AirTAC Filter Regulator NPT3/8 Low-Pressure |
|---|---|
| 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 metalworking cell where soft-jaw clamps and hold-downs must close at a gentle, repeatable pressure, this filter regulator cleans the supply air, holds the reduced set point and blocks reverse flow back toward the valve train.
Case erectors and carton sealers run short-stroke air cylinders that work best at reduced pressure; this 3/8 in unit conditions the air, keeps the set point steady shift after shift and drains accumulated water by hand at service time.
Spray guns and air-assisted atomizers need clean, dry air at a low, stable setting; the low-pressure regulator type, 40 um filtration and psi-reading gauge make this unit a straightforward conditioning point ahead of the spray station.
Size and port step up together across the GFR range (200/300/400/600, 1/8 in to 1 in), so pick the step that matches the pipe and the air demand of the circuit - we will confirm the flow curve against your application before you order. This unit is the low-pressure regulator type, so use it where the set point sits below what a standard GFR covers; the exact range is not published in the catalogue and we confirm it on request. The manual drain means someone opens the bowl drain periodically rather than relying on an automatic or differential-pressure mechanism. The 40 um element is the standard grade; a 5 um element (code W) is available if finer filtration is needed. The fitted round gauge reads in psi; embedded square gauges and MPa/bar scales are the other catalogue choices. Thread is NPT on this unit - PT is the standard thread form and G (BSPP) is the other order option. The bracket is included; J-coded variants omit it.
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 number, so we do not quote a figure here. Tell us your line pressure, set point and the air demand of the equipment, and we will confirm the flow curve and sizing for this exact model from the datasheet before you order.
The M in the code selects a manual drain on the bowl: collected water and dirt are released by opening the drain at the bottom of the bowl during routine checks. Automatic and differential-pressure drain options exist in the GFR range if you would rather not rely on manual draining; this particular unit is the manual-drain version, with the metal bowl and 40 um element shown in its code.
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.