The AirTAC GFR300C08JF2WGK AirTAC Filter Regulator G1/4, 5 um 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 AirTAC GFR300 is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your setpoint in a single body. This configuration is built around G1/4 (BSPP) ports with a 5 um filter element (the finer of the two catalogue grades), a differential-pressure drain that bleeds collected condensate when the pressure drop across the element rises, and an embedded square gauge reading in psi so the regulated outlet pressure is visible at the unit. A reverse/check valve is fitted to hold the downstream setting if upstream supply is interrupted, and no mounting bracket is included with this code. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator adjusts from 0.15-0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C (non-freezing). The size 300 bowl is polycarbonate.
This is a genuine AirTAC part from the GFR300 series, one of four frame sizes (200, 300, 400, 600) in the GFR filter-regulator line. Across the series you can order the standard 40 um element or the 5 um W grade, differential-pressure, automatic or manual drains, square or external round gauges with MPa, psi or bar scales, PT (standard), G or NPT threads, and brackets where needed. Flow for this unit is published as curves rather than a single rating, so ask us to confirm the datasheet figures against your application before ordering.
| Model | GFR300C08JF2WGK AirTAC Filter Regulator G1/4, 5 um |
|---|---|
| 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) |
Feeding fixture clamps and swing cylinders on a machining centre: the 5 um element protects the clamping valves from water and fine particulate, the regulator holds a steady clamp pressure at the psi setpoint, and the check valve keeps the circuit from venting if shop supply drops.
Supplying the vacuum ejectors and small cylinders on a benchtop placement cell, where moisture carryover ruins nozzle performance. The 5 um grade, visible psi gauge and G1/4 drop-in ports suit a compact control panel build, and the polycarbonate bowl lets operators see condensate level at a glance.
Regulating and filtering the air to diverter gates, pushers and bag-seal jaws on a packaging conveyor. The differential-pressure drain handles condensate between shifts, the regulated outlet keeps seal-jaw action consistent, and the square psi gauge lets line staff verify setpoint without tools.
Choose the GFR300 frame by stepping port size against the air demand of the circuit: this code carries G1/4 (BSPP) ports, and the 300 body sits mid-range in the 200/300/400/600 ladder, so move up a size if your consumption sits near the top of the flow curve. The 5 um element in this code suits points of use that see finer contamination than the 40 um standard grade; if the unit feeds general shop-air drops, the 40 um version of the same body is the usual choice. The differential-pressure drain here needs no daily attention but does rely on the pressure drop signal, so pick the automatic drain for unattended duty or the manual drain where an operator drains on a schedule. The fitted square gauge reads psi; MPa and bar scales and an external round gauge are alternatives. G thread is an order option - PT is the catalogue standard thread, and NPT is also available. This code ships without a bracket; add the bracket variant if the unit will be panel- or wall-mounted rather than screwed into a manifold. Because flow is published as curves and not a single rated figure, send us your application details and we will confirm sizing from the datasheet 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 as curves, not as a single rated figure, so we do not quote a number that could mislead your sizing. Send us your operating pressure and air consumption and we will confirm the flow figures from the datasheet for this exact G1/4, 5 um configuration before you order.
The W suffix in the code orders the finer 5 um element instead of the 40 um standard grade, which suits points of use sensitive to fine contamination. The K suffix adds a reverse/check valve, which holds the regulated downstream pressure if the upstream supply is interrupted. Both are catalogue options on the GFR300; the drain on this code is the differential-pressure type and the square gauge reads psi.
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.