The AirTAC GFR30008MF2K AirTAC Filter Regulator 1/4" PT 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR30008MF2K is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and holds a steady downstream pressure. This configuration is a 1/4 in PT port unit with a manual drain, the standard 40 um filter element, an embedded square gauge reading in psi, a reverse (check) valve fitted, and the mounting bracket included. The manual drain means an operator opens the bowl drain to discharge collected condensate, and it widens the regulator adjustment range to 0.05-0.9 MPa (7-130 psi). Max inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing); the polycarbonate bowl suits 200/300/400 sizes.
It is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options including automatic, manual or differential-pressure drains, a 5 um element (code W), G (BSPP) or NPT threads, gauge scales in MPa, psi or bar, and an external round gauge. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR30008MF2K AirTAC Filter Regulator 1/4" PT |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, 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 0.05 - 0.9 MPa (7 - 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. 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) |
Filtering and regulating the 1/4 in air supply to a small pneumatic press or clamping cylinder, with the check valve holding the set pressure against upstream fluctuation.
Conditioning the air feeding stopper cylinders and grippers on a packaging conveyor, where clean air and a stable set pressure keep positioning repeatable.
Supplying filtered, regulated air to a pneumatic test or assembly bench, with the psi gauge giving operators a direct readout of the set pressure at the bench.
Every choice on this unit is decodable from the code. Size 300 with a 1/4 in PT port suits circuits plumbed at 1/4 in; step up to 400 or 600 for larger ports and more flow, or down to 200 for compact points of use. The manual drain (code M) needs an operator to open the bowl drain, and it extends the adjustment range to 0.05-0.9 MPa (7-130 psi); automatic or differential-pressure drains are available for unattended drainage. The 40 um element is standard - specify 5 um (code W) for finer particulate protection. The square gauge reads psi here, with MPa or bar scales and an external round gauge as options. PT is the standard thread with G (BSPP) and NPT as order options, and the bracket is included.
Flow for this series is published as curves, not a single rated figure, so send us your application details and we will confirm sizing against the datasheet before you order.
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 this series as curves rather than a single rated figure, so there is no one rated flow number we can quote. Send us your application details and we will confirm the sizing against the datasheet on request before you order.
The manual drain (code M) means an operator opens the bowl drain to discharge collected water, instead of the bowl draining automatically. It also widens the regulator adjustment range to 0.05-0.9 MPa (7-130 psi), compared with 0.15-0.9 MPa (20-130 psi) on automatic or differential-pressure drain versions.
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.