The AirTAC GFR30008LF2G AirTAC Filter Regulator G1/4 Low-Pressure 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 GFR30008LF2G is a GFR-series filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This unit is the 300 size with a G1/4 (BSPP) port, the standard 40 um filter element, a differential-pressure drain, and the low-pressure regulator type. The embedded square gauge is fitted with a psi scale, and a mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing); the polycarbonate bowl suits general pneumatic service.
This is a genuine AirTAC part. The GFR300 family is one of several G-series sizes, with port steps, thread options (PT standard; G and NPT are order options), drain types, a 5 um element (code W) and gauge scale choices available across the range. Flow is published as curves rather than a single rated figure, and the low-pressure type's exact regulation range is not published in our data, so ask us to confirm both on request before ordering.
| Model | GFR30008LF2G AirTAC Filter Regulator G1/4 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (G (BSPP) thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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 — square, 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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)). |
| L | Low-pressure 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. |
| 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 · PT1/4" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-08 (two-unit set) |
Point-of-use conditioning for packaging machinery: the filter section strips water and debris before they reach sealing jaws and clamp cylinders, while the low-pressure regulator holds a gentle, stable supply pressure for delicate forming and sealing motions.
Mounted at the branch feeding conveyor stoppers, gates and pushers, the unit cleans the shop air and regulates it to the pressure the gate cylinders were designed for, with the psi gauge giving operators a local setpoint reference.
On a lab air bench serving sample-handling actuators and small pneumatic fixtures, the filter regulator conditions the house supply and lets technicians dial in a low working pressure, with the 40 um element guarding sensitive bench components.
Size and port: the 300 size with a G1/4 port suits lines plumbed at 1/4 in; step up to 400 or 600 when downstream demand outgrows the port, or down to 200 for compact drops. Drain: this unit uses the differential-pressure drain (the default); automatic (A) and manual (M) versions exist if your maintenance routine prefers them. Filter grade: the standard 40 um element protects most actuators and valves; specify the W code for the 5 um element where finer filtration is needed. Gauge: the fitted square gauge here reads in psi; MPa and bar scales are alternatives, and an external round gauge is optional. Thread: this unit is G (BSPP); PT is the standard thread and NPT is also an order option. A bracket is included; the J code omits it.
Sizing honestly: AirTAC publishes flow for this family as curves, not a single rated number, so we cannot quote a rated flow here. Send us your application's flow and pressure requirements and we will confirm the right size against the datasheet curves 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 flow for the GFR300 series as performance curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Tell us your application's flow and pressure requirements and we will confirm the sizing against the datasheet curves on request before you order.
The L in the code marks the low-pressure regulator variant rather than the standard one, which is the defining choice for this unit. Its exact regulation range is not published in our data, so please ask us to confirm the range on request. Everything else decodes conventionally: G1/4 port, G thread, 40 um element, differential-pressure drain, square psi gauge and an included bracket.
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.