The AirTAC GFR30010MJC2WG AirTAC Filter Regulator G3/8, 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/8" 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 GFR30010MJC2WG is an AirTAC GFR300 filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate down to 5 um (the W fine-grade element, against the 40 um standard) and holds your set downstream pressure across a 0.05-0.9 MPa (7-130 psi) adjustment range. This configuration is built with a G3/8 (BSPP) port, a manual drain bowl in polycarbonate, a round pressure gauge reading in psi, and no mounting bracket fitted. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and each size can be ordered with your choice of drain type, filter grade, gauge style and scale, thread (PT standard, G and NPT as order options) and bracket. Flow figures for this series are published as curves rather than a single rating, so ask us to confirm sizing and datasheet details against your application before ordering.
| Model | GFR30010MJC2WG AirTAC Filter Regulator G3/8, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (G (BSPP) thread) |
| Filtering grade | 5 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 | 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 0.05 - 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. |
|---|---|
| 10 | Port size PT3/8". 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. |
| W | Filtering grade 5 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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Point-of-use conditioning ahead of a machining centre's pneumatic valves and clamping circuits: 5 um filtration protects spools and orifices from fine particulate while the regulator holds a steady set pressure for repeatable clamp force.
Feeding cylinders and diverters on a packaging or cartoning line, where clean, dry, regulated air keeps pick-and-place and sealing motions consistent through a full shift.
A dedicated drop at a spray or finishing station: the 5 um element reduces carryover of water and fine dirt to the air cap, and the psi gauge lets the operator set and verify line pressure at the booth.
Choose the size and port step against the air demand of the circuit: this unit is size 300 with a 3/8 inch port; smaller or larger GFR sizes step the port and flow path up or down. Drain type is a real decision: manual drain (this code) means an operator drains the bowl, while automatic and differential-pressure drains discharge condensate without attention - pick manual where bowl checks are already part of the routine. Filter grade is 40 um standard or 5 um (code W) where finer particulate removal is needed; this unit carries the 5 um element. Gauge style and scale are selectable (embedded square or external round; MPa, psi or bar) - here you get a round gauge in psi. Thread is PT as standard with G (BSPP) and NPT as order options; this code is specified in G. A mounting bracket is optional; this configuration ships without one. Flow for the G-series is published as curves, not a single rated figure, so send us your flow and pressure requirements and we will confirm the correct size 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 G-series performance as flow curves rather than a single rated flow figure, so there is no one l/min or SCFM number we can honestly quote. Send us your required flow and working pressure and we will confirm against the datasheet curve whether this 3/8 inch size 300 unit is correctly sized before you order.
M is the manual drain: condensate collected in the polycarbonate bowl is released by operating the drain by hand, so the bowl needs to be checked as part of routine maintenance (automatic and differential-pressure drains are available on other codes). W is the 5 um filter element, a finer grade than the 40 um standard, chosen where downstream equipment needs cleaner air. This code also carries a round psi gauge and a G (BSPP) thread.
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.