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.

Thorlabs
The Thorlabs FBC125R replacement cartridge is packaged as a set of two units, each weighing 0.19 lbs, and was initially released on July 1, 2019. This component serves as a replacement part for the FBC125 system, with lifecycle status subject to current manufacturer documentation. Submit the exact part number, quantity, and application requirements to request a formal quote for this product.
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 Thorlabs 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 Thorlabs FBC125R. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.