The AirTAC GFR30008C2K AirTAC Filter Regulator PT1/4, psi Round 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 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 GFR30008C2K is a GFR300-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in one compact body. This configuration carries a PT1/4 (1/4 in) port, the standard 40 um filter element, a differential-pressure drain that bleeds condensate automatically as flow passes through, and a round pressure gauge reading in psi. A reverse (check) valve is fitted, and the polycarbonate bowl suits the 300 size frame.
This is a genuine AirTAC part. The GFR line spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, optional 5 um filtration (code W), manual or automatic drains, G or NPT threads, and gauge choices - we can supply the exact configuration you need. Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR30008C2K AirTAC Filter Regulator PT1/4, psi Round Gauge |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (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 — round, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 a bench or frame press where clean, regulated air at a set pressure keeps stroke force consistent from cycle to cycle, with the check valve holding downstream pressure during supply dips.
Conditioning the air that drives packaging machine cylinders and grippers, filtering out water and pipe scale while the regulator pins actuation pressure for repeatable sealing and folding.
Supplying instruments, sample-handling actuators and test rigs from a shop-air drop, where the 40 um element protects sensitive components and the psi gauge gives operators a direct pressure readout.
Start with size and port: the 300 size with a 1/4 in PT port suits general machine supply lines, while larger sizes (400, 600) carry more flow and larger ports. Choose the drain to match access: differential-pressure (as fitted here) needs no daily attention, automatic suits unattended installations, and manual suits points an operator already visits. The 40 um element is the standard grade; specify 5 um (code W) where finer protection is needed. The round psi gauge on this model reads in psi; square embedded gauges and MPa or bar scales are alternatives. PT is the standard thread, with G (BSPP) and NPT available to order; a bracket is included for panel or wall fixing. 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR300 series as curves rather than a single rated figure, so we do not quote one number. Tell us your working pressure and air demand and we will confirm the sizing from the datasheet curves before you order.
In the GFR code, C2 selects the round external gauge with a psi scale, and K specifies a fitted reverse (check) valve that prevents downstream pressure backing up through the unit. If you prefer the embedded square gauge, an MPa or bar scale, or no check valve, those are orderable variants of the same GFR300 unit.
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.