
Genuine AirTAC filter regulator, order code GTFR20008SJWK from the GTFR200 range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
GTFR20008SJWK is the most complete of the no-bracket, 5 um builds: the gauge is fitted so downstream pressure stays visible, and the K option adds a check valve so air cannot work its way back through the regulator when upstream supply falls away. Port size is 1/4" (08) with PT thread on the standard pressure type.
Like every GT200 code it carries the short PC bowl that separates this series from the larger GA200, drained by the differential plus manual method. The 5 um element (W) delivers cleaner air than the standard 40 um, and the J option means no mounting bracket is supplied - plan to secure the unit through its 1/4" connections or your own fabrication.
| Order code | GTFR20008SJWK |
|---|---|
| Product | Filter Regulator |
| Port | 1/4" (08) |
| Type · gauge | Standard (S) · With gauge (MPa/psi) |
| Configuration | No bracket (J) · 5 µm element (W) · PT thread · Check valve (K) |
| Port | 1/8" (06), 1/4" (08) |
|---|---|
| Thread | PT (standard) |
| Filter element | 40 µm (standard), 5 µm (W) |
| Bowl | Short PC bowl |
| Drain | Differential + manual |
| Fluid | Air |
| Low-pressure (L) version | 0.15 – 0.4 MPa (20 – 58 psi) |
Source: AirTAC Products Catalog 2026A (p.235, PDF01-P0237), GT200 ordering code and specifications.
Order GTFR20008SJWK when you want gauge plus backflow protection together: compared with GTFR20008SJNWK you keep the pressure gauge at the cost of a panel readout, and compared with GTFR20008SJW you gain the K check valve. If your circuit has no backflow risk, GTFR20008SJW is the simpler build; if 40 um filtration is enough, the K gauge sibling with the standard element avoids the finer element. Low-pressure circuits at 0.15 - 0.4 MPa (20 - 58 psi) need the L type, and NPT or G piping calls for the T or G thread codes.
On down-moving or gravity-loaded cylinders, the K check valve limits air escaping back through the regulator if supply pressure drops, while the gauge shows the regulated value at a glance.
A 1/4" PT-threaded press or riveting station benefits from the 5 um element protecting the cycle valve, and the gauge lets the operator confirm working pressure before each run.
Along a conveyor, each regulated drop with a gauge and check valve stays visibly set and isolated from backflow, and the short PC bowl suits the shallow profile above the frame.
08 = 1/4" port; S = standard pressure type; J = no mounting bracket; W = 5 um element instead of the standard 40 um; blank thread position = PT; K = check valve fitted. No N appears, so the pressure gauge is included.
K adds a check valve so downstream air cannot flow back through the unit when upstream supply is interrupted - useful for holding-type circuits. If your machine has no such requirement, GTFR20008SJW offers the same gauge, 5 um, no-bracket layout without the check valve.