The AirTAC GFR300C10LC3T 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 GFR300C10LC3T is a size-300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the low-pressure type, built for circuits that run below standard line pressure. It has 3/8 in NPT ports, a 40 um standard filter element, a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element rises, and a round pressure gauge with a bar scale. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR series is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, PT as the standard thread and G or NPT as order options, with choices of drain type, 40 um or 5 um filtration, gauge style and scale, and bracket mounting. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR300C10LC3T 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 carton-sealing or wrapping machine that runs its actuators at reduced line pressure, this unit filters incoming compressed air and holds a stable low setpoint, with the bar-scale gauge giving operators a direct reading at the machine.
Sorting and diverting gates on a conveyor line need clean air and gentle, repeatable low-pressure actuation; this filter regulator conditions the supply and regulates it in one body, and the differential-pressure drain keeps condensate from accumulating unnoticed.
Test benches and lab fixtures that clamp, purge or actuate at low pressure benefit from a single-body filter regulator: the 40 um element protects sensitive tooling, and the low-pressure type matches circuits that never see full plant line pressure.
Size 300 with 3/8 in NPT ports suits lines whose air consumption sits in the mid range; step up to size 400 or 600, or down to size 200, to match the flow your circuit needs - we can check the published flow curves against your demand before you order. The 40 um element is the standard grade for general plant air; choose the W option (5 um) only where finer particulate protection is required. Drain here is differential-pressure, which needs no operator attention; if you prefer scheduled manual draining or fully automatic purging, other GFR300 variants carry those codes. This is the low-pressure type, so confirm its adjustment range against your setpoint before ordering. The round gauge fitted here reads in bar; square embedded gauges and MPa or psi scales are alternatives. NPT is an order option on this series (PT is the standard thread), and the mounting bracket is included.
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 l/min, m3/h or SCFM number. Send us your application details and we will confirm the flow curve and correct sizing from the datasheet on request.
The L in the code marks this as the low-pressure regulator type, intended for circuits that run below standard line pressure; the exact adjustment range for the low-pressure variant is not published in the material we hold, so confirm your setpoint with us before ordering. The fitted round gauge reads in bar, and the differential-pressure drain clears collected condensate automatically as the element loads.
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.