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 173851 is a mini industrial component featuring a vertical mounting position, 3/8 NPT pneumatic connections, and a 40 µm grade of filtration with a fully automatic condensate drain. It operates within a pressure range of 0.2 MPa to 1.2 MPa and a regulation range of 0.5 bar to 7 bar, delivering a normal nominal flow rate of 1500 l/min for compressed air as per ISO 8573-1:2010 [7:9:-] or inert gases. Weighing 660 g with a moderate corrosion resistance class of CRC 2, this unit functions at temperatures between -10 °C and 60 °C using either in-line installation or a retaining bracket. 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 173851. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.