Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Festo
The Festo part number 558211 is a silver industrial component featuring a 4 mm outside diameter, a 2.9 mm inside diameter, and a weight of 0.0056 kg/m. It operates with compressed air as per ISO 8573-1:2010 [7:-:-] and water at a temperature-dependent operating pressure ranging from -0.095 MPa to 1.4 MPa (-0.95 bar to 14 bar or -13.775 psi to 203 psi), maintaining a minimum bending radius of 12 mm and a 25 mm bending radius relevant for flow rate. Certified by TÜV under authority B 013277 0527 00, this RoHS compliant element functions in ambient temperatures from -30 °C to 80 °C with VDMA24364-B2-L LABS conformity and supports plug connections for 4 mm and 5/32" outside diameters as well as 3 mm inside diameter barbed fittings. Submit the exact part number, quantity, and application requirements for a quote.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Festo 558211. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.