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 185821 is an industrial component featuring a Midi size from the D series, incorporating a branching module, pressure switch, on/off valve, filter regulator with pressure gauge, and a proportional standard oil mist lubricator. It operates with compressed air as per ISO 8573-1:2010 [-:-:-] or inert gases within an operating pressure range of 1 bar to 16 bar and a normal nominal flow rate of 1870 l/min. This assembly includes a 40 µm filtration grade, a manual rotating condensate drain with a 43 cm³ max condensate volume, a metal bowl guard, and a rotary knob with detent actuator lock. Submit the exact part number, quantity, and application requirements for a formal 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 185821. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.