The AirTAC GFR300C10F3T AirTAC Filter Regulator NPT3/8 with Gauge 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 GFR300C10F3T is a filter regulator: one body that first removes water and particulate from compressed air, then regulates downstream pressure. This configuration is the size 300 unit with a 3/8 in NPT port, a 40 um standard filtration element, and a differential-pressure drain that bleeds accumulated condensate automatically whenever the pressure differential across the element rises. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the fitted square gauge reads outlet pressure in bar. The polycarbonate bowl suits the 200/300/400 sizes, the unit operates from -5 to 70 C (non-freezing), and a mounting bracket is included. No reverse/check valve is fitted in this version.
This is a genuine AirTAC part. The GFR filter-regulator family is available in sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, G, NPT or PT threads, 40 um or 5 um (W) filtration, manual, automatic or differential-pressure drains, and square or external round gauges in MPa, psi or bar scales. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
| Model | GFR300C10F3T AirTAC Filter Regulator NPT3/8 with Gauge |
|---|---|
| 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) |
Filtering and regulating the air supplied to a pneumatic press cylinder, so the ram sees clean, settled pressure stroke after stroke.
Conditioning the shop-air feed into a packaging line's valve island, keeping water and scale out of the valves while holding a set working pressure.
A point-of-use filter regulator at a maintenance bench, giving technicians a clean, adjustable 3/8 in supply for impact wrenches and grinders.
Start with the port size: this unit steps up to 3/8 in NPT on the size 300 body, which suits lines drawing more air than a 1/4 in feed can carry - match the size step to the flow your circuit actually needs. Choose the drain next: differential-pressure (this unit) drains only when the element loads up, automatic drains on a cycle, and manual suits infrequently attended installations. Filtration is 40 um as standard; specify the W code for 5 um where finer pre-filtration matters. Gauge scale (MPa, psi or bar) and square or round style are selectable, and the thread can be ordered as PT (standard), G or NPT. A bracket is included; a J code omits it. Because flow is published as curves rather than a single rating, 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 GFR300 series as curves, not as a single rated figure, so we do not quote a number here. Tell us your working pressure and air demand and we will confirm the flow and datasheet figures for this exact model on request.
This unit's differential-pressure drain releases collected condensate automatically when the pressure drop across the 40 um element rises - no operator action and no timer needed. If your compressor runs intermittently or the unit is hard to reach, an automatic (A) or manual (M) drain version can be ordered instead.
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.