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 537658 is a mini DB-series filter regulator air line lubricator featuring a structural design with a 5 µm filtration grade and a manually rotating condensate drain. It provides a standard nominal flow rate of 550 l/min, operating pressures from 1.5 bar to 10 bar, and a pressure regulation range of 0.5 bar to 7 bar using compressed air or inert gas. This unit includes a pressure gauge, a rotary knob with detent for actuator locking, secondary exhausting with return flow function, and requires vertical mounting within +/- 5°. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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 537658. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.