The AirTAC GFR300C08JC3WT AirTAC Filter Regulator 1/4 in NPT, 5 um 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 GFR300C08JC3WT is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure at your setpoint. This configuration is sized for 1/4 in NPT ports, carries the 5 um filter element (code W) instead of the 40 um standard, drains condensate by differential pressure, and is fitted with a round pressure gauge scaled in bar. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and no reverse/check valve is fitted. The polycarbonate bowl suits non-freezing compressed air from -5 to 70 C at up to 1.0 MPa (145 psi) inlet, and the unit is supplied without a mounting bracket.
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 the catalogue options include 40 um or 5 um filtration, differential-pressure, automatic or manual drains, square or round gauges with MPa, psi or bar scales, G (BSPP) or NPT threads alongside the PT standard, mounting brackets, and a reverse/check valve. AirTAC publishes flow for this series as curves rather than a single rated figure, so ask us to confirm flow and other datasheet figures for your application before ordering.
| Model | GFR300C08JC3WT AirTAC Filter Regulator 1/4 in NPT, 5 um |
|---|---|
| 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. |
|---|---|
| C0 | 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-C0 (two-unit set) |
Filtered, regulated supply air for the gripper cylinders and vacuum ejectors on a pick-and-place cell: the 5 um element helps keep the cell's valve manifold clear of water and particles while the regulator holds a steady setpoint at the cell.
Point-of-use air for the sealing jaws and case diverters on a packaging conveyor: the unit filters and regulates the drop right at the line, and the bar-scale gauge lets an operator read and verify the setpoint at a glance.
Local air preparation for spray guns in a factory finishing booth: water and particles are stripped before the gun and pressure is set at the booth, so the painter adjusts one dial instead of the whole shop air loop.
Size and port set the capacity: this unit is a size 300 with 1/4 in NPT threads, one step up from size 200 and below sizes 400 and 600 - match the size to the air demand of the circuit, not to the pipe alone. Filtration here is the 5 um element (code W) rather than the 40 um standard; choose 5 um where downstream valves, cylinders or instruments need cleaner air. The differential-pressure drain passes condensate automatically as air flows through the element, while automatic and manual drains are the other choices in the family. The fitted round gauge reads in bar; the embedded square gauge and MPa, psi or bar scales are the alternative gauge options. Threads on this unit are NPT - PT is the AirTAC standard and G (BSPP) is the other order option - and no mounting bracket is included.
Flow for the GFR series is published as curves, not as a single rated number, so we cannot honestly quote one figure here. Send us your air demand and working pressure and we will confirm sizing against the datasheet curves 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 rather than a single rated figure, so we do not quote a number here. Tell us your air demand and working pressure and we will confirm the flow from the datasheet curves on request before you order.
The W code on this unit selects the 5 um grade, one step finer than the 40 um standard. It suits circuits with sensitive valves, cylinders or instruments; the trade-off is that a finer element holds more dirt, so the drain has more work to do. If 40 um is clean enough for your line, the standard grade in the same family is the simpler choice.
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.