The AirTAC GFR300C08LC2K 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 See datasheet 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 GFR300C08LC2K is an AirTAC GFR300 filter regulator: one body that first removes water and particulate from compressed air through a 40 um element, then regulates downstream pressure. This configuration is the low-pressure (L) type, sized for a PT1/4 (1/4 in) port with PT thread. It carries a differential-pressure drain that bleeds condensate automatically when the pressure differential across the element rises, a round gauge reading in psi, a reverse/check valve that holds downstream pressure when the supply is lost, and a mounting bracket. The polycarbonate bowl suits this 300 size.
This is a genuine AirTAC part. The GFR line spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options include a 5 um element (code W), automatic or manual drain, G (BSPP) or NPT threads, alternative gauge scales, and a no-bracket variant. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR300C08LC2K AirTAC Filter Regulator PT1/4 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard 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 0.15 - 0.9 MPa (20 - 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. |
|---|---|
| C0 | Port size See datasheet. 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C0 (two-unit set) |
On assembly fixtures that clamp at reduced downstream pressure, this unit filters the shop air and holds the regulated setting, while the check valve keeps the clamp from venting if the main supply drops.
Feeding air cylinders and actuated guides on a packaging conveyor, the 40 um element strips water and debris before they reach valve spools, and the psi gauge lets operators verify set pressure at a glance.
On a robotic pick-and-place cell with vacuum ejectors and gripper cylinders, this filter regulator conditions the 1/4 in branch feed, and the differential-pressure drain keeps condensate out of the circuit without daily manual draining.
Start with the port: this unit is 1/4 in (PT). Step up or down through sizes 200/300/400/600 if your line needs a different connection, and match the size to the air demand of the circuit. Choose the drain next: differential-pressure (as fitted here) needs no operator attention, automatic drain (code A) empties the bowl continuously, and manual drain (code M) is emptied by hand. The 40 um element is standard; specify 5 um (code W) where finer particulate removal matters. This is the low-pressure (L) type - its regulation range is not published in the catalogue, so confirm it with us against your set pressure before ordering. Gauge scale, thread (PT standard, G or NPT to order) and bracket are also selectable.
Because AirTAC publishes flow only as curves, not a single rated figure, we confirm sizing from the datasheet on request - send us your application details before ordering.
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 this series as curves, not as a single rated number, so we do not quote a figure. Tell us your application and we will confirm the flow and datasheet figures for this exact model on request before you order.
The L in the code marks the low-pressure regulator type, intended for circuits regulated below the standard range; the exact range for this variant is not published, so confirm it with us. The C2 code means a round external gauge reading in psi is fitted - the embedded square gauge with MPa, psi or bar scales is the alternative.
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.