The AirTAC GFR30008C2G AirTAC Filter Regulator G1/4, 40 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 PT1/4" 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 GFR300 is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your set point in a single compact body. This configuration, GFR30008C2G, is the 300 size with G1/4 (BSPP) ports, the standard 40 um filter element, a differential-pressure drain on the polycarbonate bowl, and a standard regulator adjustable from 0.15 to 0.9 MPa (20-130 psi). It comes with an external round gauge reading in psi and a mounting bracket, and is rated for a maximum inlet pressure of 1.0 MPa (145 psi) at -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 ports from 1/8 to 1 inch, and options include automatic or manual drains, a 5 um element (code W), gauge scales in MPa, psi or bar, and PT, G or NPT threads. The bowl is polycarbonate on sizes 200-400 and aluminium alloy on size 600. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR30008C2G AirTAC Filter Regulator G1/4, 40 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (G (BSPP) 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 — 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. 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. |
|---|---|
| 08 | Port size PT1/4". 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) 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 · PT1/4" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Feeding clamp and hold-down cylinders on a machining or assembly fixture, where the 40 um element keeps scale and condensate out of the cylinders and the regulator holds a steady clamp pressure at the set point.
Point-of-use conditioning ahead of spray guns or coating lines, where clean, moisture-reduced air at a stable, repeatable pressure keeps finish quality consistent from shift to shift.
Supplying the pick-and-place and sealing cylinders on packaging machinery, where one body provides filtered, regulated air to the whole station and the psi gauge gives operators a local set-point check.
Choose the size by port and flow: sizes 200 to 600 step up from 1/8 to 1 inch, and larger sizes carry more flow - match the port to your line and let us confirm the flow curve against your demand. The real choices for this family are: drain type (differential-pressure as here, automatic, or manual - with a manual drain the regulation range widens to 0.05-0.9 MPa / 7-130 psi), filter grade (40 um standard, 5 um with code W for finer protection), gauge type and scale (embedded square or external round; MPa, psi or bar), and thread (PT is the standard thread form, with G or NPT as order options - this unit is the G version). A mounting bracket is included on this configuration. Flow is published as curves, not a single rating, so please 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 GFR series as curves rather than a single rated figure, so we do not quote one number. Send us your line pressure, set pressure and air demand and we will confirm the flow from the datasheet for this exact configuration before you order.
This unit drains condensate from the polycarbonate bowl whenever the pressure differential across the filter is high enough, with no daily manual draining needed. The alternatives are an automatic drain (code A) or a manual drain (code M); note that with a manual drain the regulator adjustment range widens to 0.05-0.9 MPa (7-130 psi), while this differential-pressure version adjusts from 0.15 to 0.9 MPa (20-130 psi).
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.