The AirTAC GFR30008LC2 AirTAC Filter Regulator, PT1/4, 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 GFR30008LC2 is an AirTAC GFR300-series filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate from compressed air at the 40 um standard grade, drains collected condensate automatically through the differential-pressure drain, and regulates downstream pressure as a low-pressure type unit. The 1/4 in PT port suits compact supply drops, and the fitted round gauge reads in psi so operators can set and monitor the working pressure at a glance. The polycarbonate bowl is transparent for a quick fluid check, and the mounting bracket is included for panel or wall fixing.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with a choice of ports, thread types (PT standard, G and NPT to order), drain types, filter grades (40 um standard, 5 um with code W), gauge styles and scales, and a low-pressure or standard regulator. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing figures for your application before ordering.
| Model | GFR30008LC2 AirTAC Filter Regulator, PT1/4, Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/4" (PT 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 — 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. 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). |
| 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. |
| (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) |
A low-pressure clamp circuit on an automotive welding fixture needs clean, moisture-reduced air held at a modest set pressure. This filter regulator filters to 40 um, regulates as a low-pressure type, and the round psi gauge lets the setter verify clamp pressure directly at the fixture.
Bag-seal and carton-closing cylinders on a packaging line run best on dry, particle-free air at a stable, moderate pressure. Mounted on the included bracket at the machine drop, this unit conditions the supply in one body and drains condensate via the differential-pressure drain.
Where a plant ring main feeds several workstations, a filter regulator at each drop protects local actuators from water and scale and lets each station hold its own set pressure. The 1/4 in PT port and transparent PC bowl make it a compact point-of-use conditioning unit.
Choose the size and port step against the air demand of the circuit: this unit is size 300 with a 1/4 in PT port; larger sizes (400, 600) carry bigger ports and more capacity, and flow figures are confirmed from the datasheet curves on request. Drain type is a real choice across the family: differential-pressure (this unit, drains as the pressure differential builds), automatic (A), or manual (M) where you want controlled draining. Filter grade is 40 um standard or 5 um with code W for finer protection. Gauge options cover embedded square or external round styles with MPa, psi or bar scales - this configuration carries a round psi gauge. Thread is PT as standard with G (BSPP) and NPT as order options, and a bracket is included (code J deletes it). Because this is the low-pressure (L) regulator type, confirm the adjustment range against your set pressure with us before ordering - the exact range is not published in the sheet we work from.
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 curves, not as a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow and sizing figures from the datasheet on request before you order.
The L in the code marks the low-pressure regulator variant of the GFR300. It is intended for circuits set below the standard type's range. The exact adjustment range for this variant is not published in the sheet we work from, so confirm your set pressure with us and we will verify suitability from the datasheet.
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.