The AirTAC GFR30010MC2WTK AirTAC Filter Regulator NPT3/8, 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 AirTAC GFR30010MC2WTK is a size 300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is a 3/8 in NPT port unit with a 5 um filter element (the finer of the two catalogue grades), a manual drain for emptying the bowl, a round pressure gauge reading in psi, and a reverse/check valve fitted to hold downstream pressure. The polycarbonate bowl suits this size, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR series is available in sizes 200, 300, 400 and 600 with a choice of port sizes, PT (standard), G or NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um filtration, gauge style and scale, and a low-pressure regulator type. Flow is published as curves rather than a single rating, so we confirm datasheet figures on request.
| Model | GFR30010MC2WTK AirTAC Filter Regulator NPT3/8, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT 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 | 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. |
|---|---|
| 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. |
| (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. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Point-of-use filtration and regulation at a spray booth or paint kitchen air drop, where the 5 um element protects coating work from water and particulate and the manual drain is bled at shift start.
Regulating and conditioning air to carton-sealer and case-packer cylinders on a packaging line, with the check valve holding set pressure if the plant supply dips during a shift.
A serviceable filter-regulator station on a plant maintenance bench or repair bay, where the included bracket, psi round gauge and manual drain make set-and-check adjustments straightforward.
Size 300 with a 3/8 in port sits mid-range in the GFR line; step up to 400 or 600 for larger circuits or down to 200 for compact ones, sizing against the flow your line needs. The 5 um element (code W) is the right choice where finer particulate matters, against the 40 um standard. Manual drain suits installations where an operator can bleed the bowl on a routine; choose automatic or differential-pressure drain where the unit is hard to reach. The round psi gauge matches US practice; square gauges with MPa, psi or bar scales are also available. NPT thread is specified here; PT (standard) and G are order options. A bracket is included, and the fitted check valve holds downstream pressure on supply loss.
Flow for the GFR series is published as curves, not a single rated figure, so 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 GFR flow as curves rather than a single rated figure, so we do not quote a number here. Tell us your application and required flow and we will confirm sizing against the datasheet on request before you order.
The M code specifies a manual drain: the bowl is emptied by hand on a routine, which suits attended stations; automatic and differential-pressure drains are available for unattended installs. The K code means a reverse/check valve is fitted, holding downstream pressure if the upstream supply is lost.
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.