The AirTAC GFR30008MJC2K AirTAC Filter Regulator PT1/4 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 AirTAC GFR30008MJC2K is a GFR300-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single compact body. This configuration is the 300 size with PT1/4 (1/4 in) PT ports, a manual drain bowl in polycarbonate, the standard 40 um filter element, and a standard regulator adjustable from 0.05 to 0.9 MPa (7-130 psi). It is fitted with an external round gauge scaled in psi and a reverse (check) valve, and it is supplied without a mounting bracket.
This is a genuine AirTAC part. The GFR filter-regulator family spans the 200, 300, 400 and 600 sizes with port options from 1/8 in to 1 in, a choice of drain type, 40 um or 5 um filtration, gauge style and scale, and G or NPT thread options to order. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR30008MJC2K AirTAC Filter Regulator PT1/4 |
|---|---|
| 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 — 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 0.05 - 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. |
| J | Supplied without bracket. |
| (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) |
Filter, dry and regulate the air feeding pneumatic cylinders on a cartoning or case-packing conveyor, with the check valve holding set pressure if the main supply dips mid-cycle.
Condition and regulate the air feeding gripper and vacuum-generator circuits on a robotic pick-and-place cell, where clean, stable pressure keeps cycle handling consistent.
Supply filtered, pressure-regulated air to bench-top test rigs and lab instrumentation, with the psi-scaled round gauge giving operators a clear local setpoint reading.
Choose the size and port step against the air demand of the circuit: this unit is the 300 size with PT1/4 (1/4 in) PT ports, and larger sizes carry larger ports and more flow. Because flow is published as curves rather than a single rated figure, ask us to confirm sizing against your application before ordering. This code fixes several real choices: manual drain (drain by hand on a schedule - the differential-pressure default and the automatic option are available on other codes), the standard 40 um element (5 um is the W option where finer filtration is needed), a round external gauge scaled in psi (square embedded gauges and MPa or bar scales are the alternatives), and a fitted reverse/check valve to hold downstream pressure if the supply drops. Thread is PT as standard; G (BSPP) and NPT are catalogue options to order. If you need a mounting bracket, select a code without the J suffix.
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, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Send us your application details and we will confirm the flow and sizing data from the datasheet on request before you order.
The M in the code specifies a manual drain: condensate collected in the polycarbonate bowl is released by hand, so it suits installations attended at regular intervals. If the unit will run unattended or sees heavy condensate loading, choose a code with A (automatic drain) or leave the drain position blank for the differential-pressure default.
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.