The AirTAC GFR30010MLC2WT AirTAC Filter Regulator NPT3/8 Low-Pressure is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/8" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR30010MLC2WT is a GFR-series filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This 300-size unit has a 3/8 in NPT port, the 5 um filter element (the finer of the two published grades), a manual-drain polycarbonate bowl, and the low-pressure regulator type for circuits that run below standard plant pressure. It is fitted with an external round gauge scaled in psi and includes a mounting bracket. 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 spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options for automatic, manual or differential-pressure drains, 40 um or 5 um filtration, gauge style and scale, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR30010MLC2WT AirTAC Filter Regulator NPT3/8 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Low-pressure 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, psi 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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. |
|---|---|
| 10 | Port size PT3/8". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
On a bench pneumatic press, the GFR30010MLC2WT filters shop air down to 5 um and lets an operator dial in a low regulated pressure for forming or marking jobs that full line pressure would damage, with the psi gauge giving a direct read at the setpoint.
Air clamps on a CNC machining fixture receive clean, moisture-reduced air through the 5 um element, while the low-pressure regulator holds a gentle, repeatable clamp force on the 3/8 in branch feeding the clamps.
On a carton-sealing or case-packing line, this filter regulator conditions the 3/8 in supply branch feeding cylinders and grippers, with the manual drain letting maintenance purge accumulated water during scheduled shift checks.
Within the GFR line the real, decodable choices are: size and port (200/300/400/600, 1/8 to 1 in) matched to the air demand of the circuit; drain type - manual on this unit, against automatic or differential-pressure; filter grade - 5 um here versus the 40 um standard; gauge - the embedded square gauge is standard and an external round gauge in MPa, psi or bar is the option (this unit carries the round, psi-scaled gauge); thread - PT is the standard, with G and NPT as order options; and the mounting bracket. Because flow is published as curves rather than a single rated figure, send us your application details and we will confirm sizing against the datasheet 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, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow curve and sizing from the datasheet on request.
The M in the code selects a manual drain: condensate collected in the bowl is released by opening the drain during routine checks. Choose manual where the unit is accessible and drained on a schedule; choose automatic or differential-pressure drain where unattended purging is preferred. This unit also carries the 5 um (W) element instead of the 40 um standard.
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.